Three factories produce the same tool and supply it to the market. Factory A produces 30% of the tools for the market and the remaining 70% of the tools are produced in factories B and C. 98% of the tools produced in factory A, 95% of the tools produced in factory B and 97% of the tools produced in factory C are not defective. What percent of tools should be produced by factories B and C so that a tool picked at random in the market will have a probability of being non defective equal to 96%?

Answers

Answer 1

The percent of tools should be produced by factories B and C so that a tool picked at random in the market will have a probability of being non defective equal to 96% = 0.96 are 5% and 95% respectively.

We have three factories produce the same tool and supply it to the market. Let's consider three events defined as, A = event for tools produced by factory A

B = event for tools produced by factory B

C = event for tools produced by factory C and N be the count that tools produced by all factories is not defective.

The probability that the tools produced by factory A for the market, P( A) = 30%

= 0.30

The probability that the tools produced by factories B and C for the market, P( B and C) = 70% = 0.70

The Probability that tools are non- defective and that are produced in factory A, P( N/A) = 98%

= 0.98

The Probability that tools are non- defective and that are produced in factory B, P( N/B) = 95%

= 0.95

The Probability that tools are non- defective and that are produced in factory C, P( N/C) = 97% = 0.97

Now, since only three factories supply to the whole market, then by probability law, P(A) + P(B) + P( C) = 1

=> 0.3 + P(B) + P( C) = 1

=> P(B) = 0.7 - P(C) --(1)

We have to determine percent of tools should be produced by factories B and C that is P(C) and P(B) when probability of non defective, P(N) is 96% = 0.96. From the law of total probability law, P(N) is written by, P( N) = P( N/A) P(A) + P( N/B) P(B) + P( N/C) P( C)

=> 0.96 = 0.98 × 0.3 + 0.95 × ( 0.7 - P(C) ) + 0.97 × P(C)

=> 0.96 = 0.98 × 0.3 + 0.95 × 0.7 - 0.95 P(C) + 0.97 × P(C)

=> 0.96 = 0.98 × 0.3 + 0.95 × 0.7 - 0.95 P(C) + 0.97 × P(C)

=> 0.96 = 0.294 + 0.665 + 0.02 × P(C)

=> 0.96 = 0.959 + 0.02 × P(C)

=> 0.02 × P(C) = 0.96 - 0.959

=> 0.02 × P(C) = 0.001

=> P(C) = 0.05 = 5%

from equation (1), P(B) = 1 - P(C)

=> P( B) = 1 - 0.05 = 0.95

Hence, required percentage is 95%.

For more information about probability, refer:

https://brainly.com/question/25870256

#SPJ4


Related Questions

suppose p is a prime number and p2 divides ab and gcd(a,b)=1. Show p2 divides a or p2 divides b.

Answers

p is a prime number

p^2 divides ab with gcd(a, b) = 1,

then p^2 divides a or p^2 divides b.

Fundamental Theorem of Arithmetic:


1. Since gcd(a, b) = 1, we know that a and b are coprime, meaning they have no common factors other than 1.

2. Given that p is a prime number and p^2 divides ab, this implies that p divides either a or b (or both) due to the Fundamental Theorem of Arithmetic.

3. Let's assume p divides a. Then, we can write a = pk for some integer k.

4. Now, we know that p^2 divides ab, which means ab = p^2m for some integer m.

Substitute a with pk from step 3: ab = (pk)b.

5. Thus, p^2m = pkb. Since p is a prime number, by Euclid's Lemma, we know that p must divide either kb or b itself. We already assumed p divides a, so p cannot divide b (as gcd(a, b) = 1). Therefore, p must divide kb.

6. As p divides a (a = pk) and p divides kb, we can conclude that p^2 divides a. So, p^2 divides a.

7. If we instead assumed p divides b, we would arrive at a similar conclusion: p^2 divides b.

In summary, if p is a prime number and p^2 divides ab with gcd(a, b) = 1, then either p^2 divides a or p^2 divides b.

To know more about Fundamental Theorem of Arithmetic:

https://brainly.com/question/15317294

#SPJ11

] a bacteria culture starts with e 10 bacteria and grows at a rate proportional to its size. after 3 hours there are e 16 bacteria. 1. find an expression for the number of bacteria after t hours.

Answers

An expression for the number of bacteria after t hours is [tex]N(t) = e^{(10 + 2t)}[/tex].

To find an expression for the number of bacteria after t hours, given that a bacteria culture starts with e¹⁰ bacteria and grows at a rate proportional to its size, we can use the exponential growth formula:
[tex]N(t) = N(0) * e^{(kt)}[/tex]
where N(t) is the number of bacteria after t hours, N(0) is the initial number of bacteria, k is the growth constant, and t is the time in hours.

First, we are given that after 3 hours there are e¹⁶ bacteria.

Let's use this information to find the growth constant k:
[tex]e^{16} = e^{10} * e^{(3k)} \\e^{6} = e^{(3k)}[/tex]

Now, we can find k by dividing both sides by 3:
6 = 3k
k = 2

Now that we have the growth constant k, we can plug it into the exponential growth formula:
[tex]N(t) = e^{10} * e^{(2t)}[/tex]
which is equivalent to:
[tex]N(t) = e^{(10 + 2t)}[/tex]

Learn more about expression:

https://brainly.com/question/723406

#SPJ11

find the normal vector to the tangent plane of z = 7 e x 2 − 4 y z=7ex2-4y at the point (8, 16, 7) component = -1.

Answers

The normal vector to the tangent plane is the opposite of this gradient, which is:

[tex]n = (-14e^{64}, 4, -1)[/tex]

What is gradient of the surface?

The gradient of the surface is given by:

∇z = ( ∂z/∂x, ∂z/∂y, ∂z/∂z )

where ∂z/∂x and ∂z/∂y are the partial derivatives of z with respect to x and y, respectively.

The gradient of the surface at that point must first be determined before we can determine the normal vector to the tangent plane of the surface [tex]z=7e^{x^{2} } -4y[/tex] at the point (8, 16, 7).

Taking the partial derivatives, we get:

[tex]∂z/∂x = 14e^{x^{2} }[/tex]

∂z/∂y = -4

Plugging in the values x=8 and y=16, we get:

∂z/∂x = [tex]14e^{(8)^2} = 14e^{64}[/tex]

∂z/∂y = -4

Therefore, the gradient of the surface at the point (8, 16, 7) is:

∇z = ( [tex]14e^{64}, -4,[/tex]∂z/∂z )

The last component of the gradient (∂z/∂z) is always equal to 1, so we have:

∇z = ( [tex]14e^{64},[/tex] -4, 1 )

This gradient is perpendicular to the tangent plane of the surface at the point (8, 16, 7). Therefore, the normal vector to the tangent plane is the opposite of this gradient, which is:

n =[tex](-14e^{64}, 4, -1)[/tex]

The component of the normal vector in the z-direction is -1, as given in the problem statement.

know more about normal vector visit:

https://brainly.com/question/29050578

#SPJ1

The volume of air in a person's lungs can be modeled with a periodic function. The
graph below represents the volume of air, in ml., in a person's lungs over time t,
measured in seconds.
What is the period and what does it represent in this
context?
1000
you
(2-5, 2900)
(5-5, 1100)
Time (in seconds)
(8.5, 2900)
(11.5, 1100)

Answers

The period of the function represent the given context is (8.5, 2900).

The period of this function is 8.5 seconds, and it represents the time it takes for the person's lungs to fill up with air, then empty out again.

The graph shows that the volume of air in the person's lungs is at its maximum (2900 ml) at the start of each period, and then decreases over time until it reaches its minimum (1100 ml) at the end of each period.

Therefore, the period of the function represent the given context is (8.5, 2900).

To learn more about the function visit:

https://brainly.com/question/28303908.

#SPJ1

calculate constrained minimum find the points on the curve xy2 = 54 nearest the origin.

Answers

To calculate the constrained minimum, we need to use the method of Lagrange multipliers. We define the Lagrangian function L as L(x,y,λ) = xy^2 - λ(d^2 - x^2 - y^2 - z^2), where d represents the distance between the origin and the nearest point on the curve.

Taking the partial derivatives of L with respect to x, y, and λ, we get:

dL/dx = y^2 + 2λx = 0
dL/dy = 2xy - 2λy = 0
dL/dλ = d^2 - x^2 - y^2 - z^2 = 0

Solving these equations simultaneously, we get:

x = ± 3√6, y = ± √6, and λ = 3/2

Therefore, the points on the curve xy^2 = 54 nearest to the origin are:

(3√6, √6) and (-3√6, -√6)

These points are the constrained minimum because they are the closest points on the curve to the origin.
To find the constrained minimum and the points on the curve xy^2 = 54 nearest to the origin, we can use the method of Lagrange multipliers. Let f(x, y) = x^2 + y^2 be the distance squared from the origin, and g(x, y) = xy^2 - 54 as the constraint.

First, calculate the gradients:
∇f(x, y) = (2x, 2y)
∇g(x, y) = (y^2, 2xy)

Now, set ∇f(x, y) = λ ∇g(x, y):
(2x, 2y) = λ(y^2, 2xy)

This gives us two equations:
1) 2x = λy^2
2) 2y = λ2xy

From equation (2), we can get:
λ = 1/y

Now, substitute λ into equation (1):
2x = (1/y)y^2
2x = y

Using the constraint equation g(x, y) = xy^2 - 54 = 0, we can substitute y = 2x:
2x(2x)^2 = 54
8x^3 = 54
x^3 = 27/4
x = ∛(27/4) = 3/√4 = 3/2

Now we can find y using y = 2x:
y = 2(3/2) = 3

Thus, the point nearest to the origin on the curve xy^2 = 54 is (3/2, 3).

Visit here to learn more about Lagrangian function brainly.com/question/31367466

#SPJ11

If x = t^3 - t and y = Squareroot 3t + 1, then dy/dx at t = 1 is 3/8 1/8 8/3 8 3/4

Answers

If x = [tex]t^3[/tex] - t and y = [tex]\sqrt{3t + 1}[/tex], then dy/dx is 3/8 at t = 1.

To find dy/dx at t=1, we need to first find dx/dt and dy/dt, and then use the chain rule.
1. Find dx/dt:
x = [tex]t^3[/tex] - t
Differentiate with respect to t:
dx/dt = [tex]3t^2[/tex] - 1
2. Find dy/dt:
y = sqrt(3t + 1)
Differentiate with respect to t:
dy/dt = 1/2 * [tex](3t + 1)^{(-1/2)}[/tex] * 3
dy/dt = 3/(2 * [tex]\sqrt{(3t + 1)}[/tex])
3. Use the chain rule to find dy/dx:
dy/dx = (dy/dt) / (dx/dt)
4. Plug in the values at t = 1:
dx/dt (t=1) = [tex]3(1)^2[/tex] - 1 = 2
dy/dt (t=1) = 3/(2 * [tex]\sqrt{(3(1) + 1)}[/tex]) = 3/4
5. Calculate dy/dx at t = 1:
dy/dx = (3/4) / 2 = 3/8
So, the answer is 3/8.

To learn more about chain rule, refer:-

https://brainly.com/question/30117847

#SPJ11

nicola, stephanie, kathryn, and william, in that order, take turns at rolling a fair die until one of them throws a 6. what is the probability that william is the first to throw a 6?

Answers

The probability that William is the first to throw a 6 is approximately 125/1296 or roughly 0.096.

How to calculate the probability?

You asked for the probability that William is the first to throw a 6 when Nicola, Stephanie, Kathryn, and William take turns rolling a fair die.

To calculate this probability, we need to consider the following events:
1. William rolls a 6.
2. Nicola, Stephanie, and Kathryn all roll a number other than 6.

The probability of each person rolling a 6 is 1/6, while the probability of not rolling a 6 is 5/6.

So, the probability that William is the first to roll a 6 is:

P(William rolls 6) = P(Nicola rolls not 6) × P(Stephanie rolls not 6) × P(Kathryn rolls not 6) × P(William rolls 6)
= (5/6) × (5/6) × (5/6) × (1/6)

Now, multiply the fractions:

= (5 × 5 × 5 × 1) / (6 × 6 × 6 × 6)
= 125 / 1296

So, the probability that William is the first to throw a 6 is approximately 125/1296, or roughly 0.096 (rounded to 3 decimal places).

Learn more about probability

brainly.com/question/30034780

#SPJ11

The first four nonzero terms in the power series expansion of the function f(x) = sinx about x = 0 are Select the correct answer. Oa 1-x+x2/2-x3 /3 Ob.1-x2/2+x4/24-x6/720 Odx-x3/6+x/120-x/5040 Oe. 1 +x2 / 2 +x4 / 4 +x" / 6

Answers

The first four nonzero terms in the power series expansion option (D) - [tex]x^{3/6} + x^{5/120} - x^{7/5040[/tex]

What is function?

In mathematics, a function is a unique arrangement of the inputs (also referred to as the domain) and their outputs (sometimes referred to as the co-domain), where each input has exactly one output and the output can be linked to its input.

The power series expansion of the function f(x) = sin(x) about x = 0 is given by:

f(x) = [tex]x - x^{3/3}! + x^{5/5}! - x^{7/7}! + ...[/tex]

To find the first four nonzero terms, we substitute x = 0 into the series and discard all the terms that are zero:

f(0) = 0 - 0 + 0 - 0 + ... = 0

f'(0) = 1 - 0 + 0 - 0 + ... = 1

f''(0) = 0 - 3!/2! + 0 + 0 + ... = -3/2

f'''(0) = 0 + 0 + 5!/3! - 0 + ... = 5/6

Therefore, the first four nonzero terms in the power series expansion of sin(x) about x = 0 are:

sin(x) ≈ [tex]x - x^{3/3}! + x^{5/5}! - x^{7/7}![/tex]

Simplifying this expression, we get:

sin(x) ≈ [tex]x - x^{3/6} + x^{5/120} - x^{7/5040[/tex]

So, the correct answer is option (D) - [tex]x^{3/6} + x^{5/120} - x^{7/5040[/tex].

Learn more about function on:

https://brainly.com/question/10439235

#SPJ11

The table shows the number of students who signed up for different after school activities. Each student signed up for exactly one activity.
Activity Students
Cooking
9
99
Chess
4
44
Photography
8
88
Robotics
11
1111
Total
32
3232
Match the following ratios to what they describe.
Description
Ratio

Answers

a) The ratio of the photography students to the chess students is 2 : 1

b) The ratio of photography students to all students is 1 : 4

c) The ratio of chess students to all students is 1 : 8

Given data ,

Let the number of cooking students = 9

Let the number of chess students = 4

Let the number of photography students be = 8

Let the number of robotics students = 11

So , the total number of students = 32

a)

The ratio of the photography students to the chess students = 8 / 4

On simplifying the proportion , we get

The ratio of the photography students to the chess students = 2 : 1

b)

The ratio of photography students to all students = 8 / 32

The ratio of photography students to all students = 1 : 4

c)

The ratio of chess students to all students = 4 / 32

The ratio of chess students to all students = 1 : 8

Hence , the proportion is solved

To learn more about proportion click :

https://brainly.com/question/7096655

#SPJ1

The complete question is attached below :

The table shows the number of students who signed up for different after school activities. Each student signed up for exactly one activity.

Determine whether the set, together with the indicated operations, is a vector space. If it is not, then identify one of the vector space axioms that fails. The set of all 4 x 4 matrices of the form [a c b 0] with the standard operations The set is a vector space. The set is not a vector space because it is not closed under addition. The set is not a vector space because an additive inverse does not exist. The set is not a vector space because it is not closed under scalar multiplication. The set is not a vector space because a scalar identity does not exist.

Answers

The set is not a vector space because it is not closed under addition.

To determine whether the given set is a vector space, we need to check if it satisfies the vector space axioms. Let's consider the closure under addition axiom. Let A = [a1 c1 b1 0] and B = [a2 c2 b2 0] be two 4x4 matrices in the set. Adding A and B, we get:

A + B = [a1+a2 c1+c2 b1+b2 0+0] = [a1+a2 c1+c2 b1+b2 0]

The resulting matrix is not guaranteed to be in the set because the sum of b1 and b2 (b1+b2) might not be equal to the sum of a1 and a2 (a1+a2). Therefore, the set is not closed under addition, and it is not a vector space.

To know more about vector space click on below link:

https://brainly.com/question/13058822#

#SPJ11

HURRY UP Please answer this question

Answers

Answer:

b=32

Step-by-step explanation:

a^2+b^2=c^2

24^2+b^2=40^2

576+b^2=1600

b^2=1600-576

b^2=1024

b=32

Pls help me asap!!!

On the axes below, make an appropriate scale and graph exactly one cycle of the trigonometric function y = 7 sin 6x.

Answers

The graph is given in the image below:

How to make the right scale for the trig function

To plot a full cycle of y = 7sin(6x), begin by dividing the period (2π) by six to obtain π/3, which is then used to mark every increment of π/6 along the x-axis.

Additionally, since y ranges from -7 to 7, label the y-axis in increments of either 1 or 2.

Plot the key points at (0,0), (π/12,7), (π/6,0), (π/4,-7), and (π/3,0), and finally connect them smoothly with a curve to complete the plot of one full cycle.

Read more about trigonometric functions here:

https://brainly.com/question/25618616

#SPJ1

calculate the euclidean distance between the following two points: (5,8,-2) and (-4,5,3) round to two decimal places

Answers

The Euclidean distance between the two points (5,8,-2) and (-4,5,3) is approximately 10.72 (rounded to two decimal places).

Explanation: -

To calculate the Euclidean distance between two points (5,8,-2) and (-4,5,3), you can use the following formula:

Euclidean Distance = √((x2 - x1)^2 + (y2 - y1)^2 + (z2 - z1)^2)

Here, (x1, y1, z1) = (5, 8, -2) and (x2, y2, z2) = (-4, 5, 3). Now, plug in the values:

Step 1. Calculate the differences between the co-ordinates;
  (x2 - x1) = (-4 - 5) = -9
  (y2 - y1) = (5 - 8) = -3
  (z2 - z1) = (3 - (-2)) = 5

Step 2. Square the differences:
  (-9)^2 = 81
  (-3)^2 = 9
  (5)^2 = 25

Step 3. Add the squared differences:
  81 + 9 + 25 = 115

Step 4. Take the square root:
  √115 ≈ 10.72

So, the Euclidean distance between the two points is approximately 10.72 (rounded to two decimal places).

Know more about the "Euclidean distance" click here:

https://brainly.com/question/30598325

#SPJ11

explain why the set of natural numbers {1,2,3,4,...} and the set of even numbers {2, 4, 6, 8, . . .} have the same cardinality.

Answers

The sets of natural numbers {1, 2, 3, 4, ...} and even numbers {2, 4, 6, 8, ...} have the same cardinality because there exists a bijective function between the two sets. A bijective function is a one-to-one correspondence that pairs each element in one set with exactly one element in the other set. In this case, the function f(n) = 2n pairs each natural number n with an even number 2n, ensuring that the two sets have the same cardinality.

The two sets, the set of natural numbers {1,2,3,4,...} and the set of even numbers {2, 4, 6, 8, . . .}, have the same cardinality because we can create a one-to-one correspondence between the two sets. To do this, we can simply map each natural number to its corresponding even number (i.e., 1 maps to 2, 2 maps to 4, 3 maps to 6, and so on). This mapping covers all elements of both sets, without skipping any, and without duplicating any. Thus, the two sets have the same number of elements, which means they have the same cardinality.

Learn more about natural numbers here: brainly.com/question/17429689

#SPJ11

A strip of width 4 cm is attached to one side of a square to form a rectangle. The area of the rectangle formed is 77c * m ^ 2 then find the length of the side of the square.A strip of width 4 cm is attached to one side of a square to form a rectangle. The area of the rectangle formed is 77c * m ^ 2 then find the length of the side of the square.

Answers

Answer:

x = -2 + sqrt(4 + 77c*m^2) cm.

Step-by-step explanation:

Let's denote the side of the square by "x".

When the strip of width 4 cm is attached to one side of the square, the resulting rectangle has dimensions of (x+4) cm by x cm.

The area of the rectangle is given by:

(x+4) * x = 77c * m^2

Expanding the left-hand side and simplifying, we get:

x^2 + 4x = 77c * m^2

Moving all the terms to one side, we get:

x^2 + 4x - 77c * m^2 = 0

Now we can use the quadratic formula to solve for x:

x = [-4 ± sqrt(4^2 - 41(-77cm^2))] / (21)

x = [-4 ± sqrt(16 + 308cm^2)] / 2

x = [-4 ± 2sqrt(4 + 77cm^2)] / 2

x = -2 ± sqrt(4 + 77c*m^2)

Since the length of a side of a square must be positive, we can discard the negative solution and get:

x = -2 + sqrt(4 + 77c*m^2)

Therefore, the length of the side of the square is x = -2 + sqrt(4 + 77c*m^2) cm.

The length of the side of the square is x = -2 + 2√(1 + 19c) cm.

What is Area of Rectangle?

The area of Rectangle is length times of width.

Let the side of the square be x cm.

When a strip of width 4 cm is attached to one side of the square, the resulting rectangle will have dimensions (x + 4) cm and x cm.

The area of the rectangle is given as 77c m² so we have:

(x + 4)x = 77c

Expanding the left side, we get:

x² + 4x = 77c

Bringing all the terms to one side, we have:

x² + 4x - 77c = 0

Now, we can use the quadratic formula to solve for x:

x = [-4 ± √(4² - 4(1)(-77c))] / 2(1)

x = [-4 ± √(16 + 308c)] / 2

x = [-4 ± √(16(1 + 19c))] / 2

x = [-4 ± 4√(1 + 19c)] / 2

x = -2 ± 2√(1 + 19c)

Since x must be positive, we take the positive root:

x = -2 + 2√(1 + 19c)

Therefore, the length of the side of the square is x = -2 + 2√(1 + 19c) cm.

To learn more on Area of Rectangle click:

https://brainly.com/question/20693059

#SPJ2

TEXT ANSWER
2x + 5y = -10
-2x + y = 46

SHOW ALL WORK in the way that works best for you

Answers

Answer:

x= - 20

y= 6

Step-by-step explanation:

2x + 5y = -10

-2x + y = 46

if u solve it

it is 6y= 36 so y =6

and substitute y value into the equation:

-2x+ 6 = 46

-2x= 40

so x= -20

let {n,k} denote the number of partitions of n distinct objects into k nonempty subsets. show that {n+1,k}=k{n,k}+{n,k-1}

Answers

The total number of ways to partition the set of n+1 distinct objects into k nonempty subsets is {n+1,k} = k{n,k} + {n,k-1}, as required.

To show that {n+1,k}=k{n,k}+{n,k-1}, we can use a combinatorial argument.

Consider a set of n+1 distinct objects. We want to partition this set into k nonempty subsets. We can do this in two ways

Choose one of the n+1 objects to be the "special" object. Then partition the remaining n objects into k-1 nonempty subsets. This can be done in {n,k-1} ways.

Partition the n+1 objects into k nonempty subsets, and then choose one of the subsets to be the subset that contains the special object. There are k ways to choose the subset that contains the special object, and once we have chosen it, we need to partition the remaining n objects into k-1 nonempty subsets. This can be done in {n,k-1} ways.

Learn more about combinatorial argument here

brainly.com/question/28452452

#SPJ4

How many solutions are there to the equation x1 + x2 + x3 + x4 + X's + x6 = 29, where x; i = 1, 2, 3, 4, 5, 6, is a nonnegative integer such that a) x;> 1 for i = 1, 2, 3, 4, 5, 6? b) x 21,2 2,43 3,44 24, X5 > 5, and x 6? c) x 35? d) x < 8 and .x > 8?

Answers

A. The number of solutions to the equation x1 + x2 + x3 + x4 + x5 + x6 = 29, where xi is a nonnegative integer, is: a) 22C6, b) 29C5, c) 23C5, and d) 6C122C5 - 1 - 6C114C5.

B.

a) Since xi>1, we can subtract 2 from each xi, which gives us the equation x1' + x2' + x3' + x4' + x5' + x6' = 17, where xi' = xi - 2. Then, we can use stars and bars to get the solution as (17 + 6 - 1)C(6 - 1) = 22C5.

b) Since x2>1, x5>5, and x6>0, we can subtract 2 from x2, subtract 6 from x5, and subtract 1 from x6, which gives us the equation x1 + x2' + x3 + x4 + x5' + x6' = 20, where xi' = xi - 2 for i = 2, 5, and xi' = xi - 1 for i = 6. Then, we can use stars and bars to get the solution as (20 + 6 - 1)C(6 - 1) = 29C5.

c) Since x3≥5, we can subtract 5 from x3, which gives us the equation x1 + x2 + x3' + x4 + x5 + x6 = 24, where x3' = x3 - 5. Then, we can use stars and bars to get the solution as (24 + 6 - 1)C(6 - 1) = 23C5.

d) To find the number of solutions where xi<8 for all i and xi>8 for at least one i, we can subtract 1 from x5, which gives us the equation x1 + x2 + x3 + x4 + x5' + x6 = 21, where x5' = x5 - 1. Then, we can use stars and bars to get the total number of solutions where xi<8 for all i as (21 + 6 - 1)C(6 - 1) = 26C5. To find the number of solutions where xi<8 for all i and xi>8 for at least one i, we can subtract 9 from xi for the i that is greater than 8 and subtract 1 from x5, which gives us the equation x1 + x2 + x3 + x4 + x5' + x6' = 12, where x5' = x5 - 1 and x_i' = x_i - 9 for i>8. Then, we can use stars and bars to get the total number of solutions where xi<8 for all i as (12 + 6 - 1)C(6 - 1) = 16C5. Therefore, the number of solutions where xi<8 for all i except xi>8 for at least one i is 26C5 - 16C5 = 6C122C5 - 1 - 6C114C5.

Note: In all cases, we use the stars and bars technique to count the number of nonnegative integer solutions to an equation of the form x1 + x2 + ... + xn = k. The answer

The radius of a circle is 14 yards. What is the circle's circumference? 3.14 for pi

Answers

Answer:

87.96

Step-by-step explanation:

Where pi is approximately equal to 3.14 and r is the radius of the circle.

In this case, the radius is 14 yards.

So the circumference is:

2pi14 = 87.96 yards.

what is equivalent to 5x - 19

Answers

For x = 3, the expression 5x - 19 is equivalent to -4.

Here, we have an expression, 5x - 19, which is not an equation yet because it doesn't have an equal sign (=). An equation requires that both sides of the equal sign be equivalent.

To make this expression into an equation, we need to set it equal to something. Let's say we want to find an expression that is equivalent to 5x - 19. We can represent this unknown expression as "y". So, our equation will be:

5x - 19 = y

This equation is now saying that the expression 5x - 19 is equivalent to y. We can also say that "y" is a function of "x", meaning that the value of "y" depends on the value of "x".

We can use this equation to find the value of "y" for any given value of "x". If we substitute x = 3, we get:

5(3) - 19 = y

y = 15 - 19

y = -4

To know more about equation here

https://brainly.com/question/10413253

#SPJ1

Complete Question:

what is equivalent to 5x - 19 when x = 3?

The steps for circumscribing a circle about a triangle are shown:

Step 1 Construct the angle bisector of one side of the triangle.
Step 2 Construct the perpendicular bisector of another side of the triangle.
Step 3 Indicate the point of intersection of the bisectors with a point representing the center of the circle.
Step 4 Place the compass on the center, adjust its length to reach any vertex of the triangle, and draw your circumscribed circle.

Which step is incorrect, and how can it be fixed?

a
Step 1, replace "angle bisector" with "perpendicular bisector"

b
Step 3, replace "circle" with "triangle"

c
Step 4, replace "vertex" with "side"

d
All steps are correct

Answers

There is an error in Step 1. The correct answer should be: a) Step 1, replace "angle bisector" with "perpendicular bisector"

What do the terms "inscribed" and "circumscribed" figures mean?

An inscribed figure is, in essence, one shape drawn inside of another. A form drawn outside another shape is referred to as a circumscribed figure. All of a polygon's corners, or vertices, need to touch the circle in order for it to be enclosed inside of it.

The appropriate procedures for drawing a circle around a triangle are as follows:

Step 1: Create the perpendicular bisector of one triangle side .

Step 2: Create the perpendicular bisector of a different triangle side .

Step 3: Mark the place where the bisectors cross a point that represents the centre of the circle.

Step 4: Center the compass and adjust its length to reach any triangle vertex before drawing your circle's circumference.

Hence, option a is correct answer.

Learn more about circumscribed figures here:

https://brainly.com/question/1436883

#SPJ1

what is in the middle of, 26.27 and 26.89?

Answers

The middle value between 26.27 and 26.89 is 26.58.

To find the middle value between 26.27 and 26.89, you can follow these steps:

1. Add the two numbers together: 26.27 + 26.89 = 53.16
2. Divide the sum by 2 to find the average: 53.16 ÷ 2 = 26.58

The middle value between 26.27 and 26.89 is 26.58.

The middle value of a set of numbers is commonly referred to as the "median". The median is a statistical measure of central tendency that represents the value that separates the lower and upper halves of a dataset.

To find the median of a set of numbers, the numbers must first be arranged in order from lowest to highest (or highest to lowest). If the dataset contains an odd number of values, the median is the middle value.

For example, if we have the set of numbers {1, 3, 5, 7, 9}, the median is 5, which is the value that separates the lower half {1, 3} from the upper half {7, 9}.

If the dataset contains an even number of values, the median is the average of the two middle values. For example, if we have the set of numbers {2, 4, 6, 8}, the median is (4 + 6) / 2 = 5, which is the average of the two middle values that separate the lower half {2, 4} from the upper half {6, 8}.

The median is a useful measure of central tendency because it is not affected by extreme values or outliers in the dataset, unlike the mean, which can be skewed by such values.

To know more about middle value, refer here:

https://brainly.com/question/20846131

#SPJ11

Let A and wDrmine if w is in Col(A). Is w in Nul(A)? -2 4 Determine if w is in Col(A). Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. The vector w is in Col(A) because the columns of A span R2 O B. The vector w is in Col(A) because Ax w is a consistent system. One solution is x ° C. The vector w is not in Col(A) because Ax = wis an inconsistent system. One row of the reduced row echelon form of the augmented matrix [A 0] has the form [0 0 b] where b The vector w is not in Col(A) because w is a linear combination of the columns of A. ( D.

Answers

B. The vector w is in Col(A) because Ax = w is a consistent system. One solution is x is the correct option.

To determine if w is in Col(A), we need to check if there exists a solution x such that Ax = w. If such a solution exists, then w is in Col(A).

However, we cannot determine if w is in Nul(A) without knowing more information about matrix A. The nullspace of a matrix is the set of all solutions x to the equation Ax = 0. It is possible for a vector to be in the column space but not in the nullspace, and vice versa.

So, the correct choice is:

B. The vector w is in Col(A) because Ax = w is a consistent system. One solution is x = (-2,4)^T.

We cannot determine if w is in Nul(A) without more information about A.

Learn more about the nullspace :

https://brainly.com/question/31323091

#SPJ11

Answer this math question for 15 points

Answers

Answer:

(the length of leg)^2=87^2-60^2=3969

so when take the root :

the length of leg=63ft

A normally distributed population has mean 30.5 and standard deviation 3.5. Find the mean of sample mean for sample size of 10. a. 30.5 b. 0.35 c. 3.5 d. 35.0 e. 3.05

Answers

The mean of sample mean for sample size of 10 is e. 3.05.

To find the mean of sample means for a sample size of 10 from a normally distributed population with mean 30.5 and standard deviation 3.5, we use the formula:

mean of sample means = population mean = 30.5

So the answer is not affected by the sample size or standard deviation. The mean of the sample means will always be equal to the population mean.

Learn more about : Statistics - https://brainly.com/question/31497663

#SPJ11

Need help asap! thanks!

Answers

Yes the opposite sides of the figure are congruent because:

Both WX and YZ have a length of 3.6

Both XY and WZ have a length of 16.8

How to Use Pythagoras Theorem?

Pythagoras Theorem is the way in which you can find the missing length of a right angled triangle.

The triangle has three sides, the hypotenuse (which is always the longest), Opposite (which doesn't touch the hypotenuse) and the adjacent (which is between the opposite and the hypotenuse).

Pythagoras Theorem is in the form of;

a² + b² = c²

Using Pythagoras theorem, we have:

WX = √(3² + 2²)

WX = √13 = 3.6

YZ = √(3² + 2²)

YZ = √13 = 3.6

Similarly:

XY = √(5² + 16²)

XY = √281

XY = 16.8

WZ = √(5² + 16²)

WZ = √281

WZ = 16.8

Read more about Pythagoras Theorem at: https://brainly.com/question/231802

#SPJ1

Yes the opposite sides of the figure are congruent because:

Both WX and YZ have a length of 3.6

Both XY and WZ have a length of 16.8

How to Use Pythagoras Theorem?

Pythagoras Theorem is the way in which you can find the missing length of a right angled triangle.

The triangle has three sides, the hypotenuse (which is always the longest), Opposite (which doesn't touch the hypotenuse) and the adjacent (which is between the opposite and the hypotenuse).

Pythagoras Theorem is in the form of;

a² + b² = c²

Using Pythagoras theorem, we have:

WX = √(3² + 2²)

WX = √13 = 3.6

YZ = √(3² + 2²)

YZ = √13 = 3.6

Similarly:

XY = √(5² + 16²)

XY = √281

XY = 16.8

WZ = √(5² + 16²)

WZ = √281

WZ = 16.8

Read more about Pythagoras Theorem at: https://brainly.com/question/231802

#SPJ1

the proportion of americans with hypertension is about 33%. the claim of lbp inc is that if you take their vitamin, the chances that you get high blood pressure will go down. what are the hypotheses for this?

Answers

The null hypothesis (H0) for this probability would be that there is no effect of taking the vitamin on the chances of getting high blood pressure.

The alternative hypothesis (Ha) would be that taking the vitamin reduces the chances of getting high blood pressure.

Therefore, the hypotheses for this claim can be written as:

H0: The proportion of Americans with hypertension who take the vitamin is the same as the proportion of Americans with hypertension who do not take the vitamin.

Ha: The proportion of Americans with hypertension who take the vitamin is lower than the proportion of Americans with hypertension who do not take the vitamin.

To know more about probability,

https://brainly.com/question/30034780

#SPJ11

Consider the sum 10 + 21 +32 +43 + ... +406. A. How many terms (summands) are in the sum? B. Compute the sum using a technique discussed in this section.

Answers

A. There are 37 terms in the sum.

B. The sum of the given series is 7,696.

How many terms are in the sum?

A. Using arithmetic sequences, We can observe that each term in the sum is obtained by adding 11 to the previous term. Therefore, the nth term can be expressed as:

[tex]a_n = 10 + 11(n-1)[/tex]

We want to find the number of terms in the sum up to [tex]a_n[/tex] = 406. Setting [tex]a_n[/tex]= 406 and solving for n, we get:

406 = 10 + 11(n-1)

396 = 11(n-1)

n = 37

Therefore, there are 37 terms in the sum.

How to compute the sum?

B. We can use the formula for the sum of an arithmetic series:

[tex]S_n = n/2 * (a_1 + a_n)[/tex]

where [tex]S_n[/tex] is the sum of the first n terms, [tex]a_1[/tex] is the first term, and[tex]a_n[/tex] is the nth term.

In this case, we have:

[tex]a_1[/tex]= 10

[tex]a_n[/tex]= 406

n = 37

Substituting these values, we get:

[tex]S_{37}[/tex] = 37/2 * (10 + 406)

[tex]S_{37}[/tex] = 18.5 * 416

[tex]S_{37}[/tex] = 7,696

Therefore, the sum of the given series is 7,696.

Learn more about arithmetic sequences

brainly.com/question/15412619

#SPJ11

Evaluate the iterated integral by converting to polar coordinates.
4
∫ ^√16 − x2 e^−x^2 − y^2 dy dx
0
____

Answers

The final answer will be an approximation.

We have the iterated integral:

∫(0 to √16) ∫(0 to √[tex]16-x^2) e^(-x^2-y^2) dy dx[/tex]

To convert to polar coordinates, we use the substitution x = r cos(θ) and y = r sin(θ), where r is the radial distance and θ is the angle with the positive x-axis.

The limits of integration also need to be changed accordingly. For the inner integral, we have:

0 ≤ y ≤ √[tex](16-x^2)[/tex]

Substituting y = r sin(θ), we get:

0 ≤ r sin(θ) ≤ √(16 - [tex]r^2 cos^2[/tex](θ))

Squaring both sides, we get:

0 ≤ [tex]r^2 sin^2[/tex](θ) ≤ 16 - [tex]r^2 cos^2[/tex](θ)

Rearranging, we get:

[tex]r^2 (cos^2[/tex](θ) + [tex]sin^2[/tex](θ)) ≤ 16

[tex]r^2[/tex] ≤ 16

0 ≤ r ≤ 4

For the outer integral, we have:

0 ≤ x ≤ √16

Substituting x = r cos(θ), we get:

0 ≤ r cos(θ) ≤ √16

0 ≤ r ≤ 4 cos(θ)

Thus, the integral in polar coordinates becomes:

∫(0 to π/2) ∫(0 to 4 cos(θ)) [tex]e^(-r^2[/tex]) r dr dθ

Evaluating the inner integral, we get:

∫(0 to 4 cos(θ)) e^(-r^2) r dr = -1/2 e^(-r^2) |0 to 4 cos(θ)) = 1/2 (1 - e^(-16 cos^2(θ)))

Substituting back into the outer integral, we get:

∫(0 to π/2) 1/2 (1 - e^(-16 cos^2(θ))) dθ

Simplifying, we get:

1/2 ∫(0 to π/2) (1 - e^(-16 cos^2(θ))) dθ

To evaluate this integral, we need to use numerical methods or approximations. Therefore, the final answer will be an approximation.

To learn more about approximation. visit:

https://brainly.com/question/30707441

#SPJ11

Please answer parts a-c: (a) Sketch the graph of the function f(x) = 2*. (b) If f(x) is translated 4 units down, what is the equation of the new function g(x)? (c) Graph the transformed function g(x) on the same grid. **Both functions must be present on your graph. Remember to include at least two specific points per function! **
answer:
equation of g(x):​

Answers

A graph of the function [tex]f(x) = 2^x[/tex] is shown in the image below.

If f(x) is translated 4 units down, the equation of the new function g(x) is [tex]g(x) = 2^x-4[/tex]

The transformed function g(x) is shown on the same grid below.

What is a translation?

In Mathematics and Geometry, the vertical translation a geometric figure or graph downward simply means subtracting a digit from the value on the y-coordinate of the pre-image or function.

In Mathematics and Geometry, a horizontal translation to the right is modeled by this mathematical equation g(x) = f(x - N) while a vertical translation to the positive y-direction (downward) is modeled by this mathematical equation g(x) = f(x) - N.

Where:

N represents an integer.g(x) and f(x) represent functions.

In this scenario, we can logically deduce that the graph of the parent function f(x) was translated or shifted downward (vertically) by 4 units as shown below.

Read more on translation here: brainly.com/question/4521517

#SPJ1

Other Questions
Study the meander cutbanks along the Rio Grande labeled A-G. The red leader from each letter points to the cutbanks location in 1936. The blue leader from each letter points to the cutbanks location in 1992. In what two general directions (relative to the meander, relative to the direction of river flow) have these cutbanks moved? For your assignment, read Jeremy's email then write at least three complete sentences describing how Jeremy used the SPA method to advocate for himself.Dear Mr. Kwali,One week ago, you gave us the homework to read one chapter every night. You told us that we would have to write a chapter summary every morning when we got to class. I was excited to read this book, but also nervous because it is the longest book I've ever tried to read.Mr. Kwali, I am having a hard time keeping up with my reading. When I sit down to read, sometimes the letters move around. I am trying to read a chapter every night, but it takes me over an hour to read and I also need to finish all my other homework.I thought of a solution. Could I come to your classroom at lunch so I could read and maybe get some help from you? This way, I can spend some extra time reading and I won't fall behind.I know that you don't always have students stay for lunch in your classroom, so thank you for your help. Maybe I can come just twice a week.Thank you,Jeremy Consider a failing bank. Ilthe FDIC uses the payoff mathod, a deposit of $320,000 is worth s(Round your response to the nearest whole number) If the FDIC uses the purchase and assumption method, a deposit of $320.000 is worth s(Round your response to the nearest whole number) Which method is more costly to taxpayers? O A. The payoff method. O B. Both methods are equally costly to taxpayers OC. The purchase and assumption method If an owner of a copy center is interested in knowing which of her employees can make the most copies in one hour, she wants to understand _____. A.(correct)which employee has the absolute advantage in making copiesB.which employee has the comparative advantage in making copiesC.the opportunity cost of employees making copies D.the resource distribution of her copy center bad eggs sal of eggs that are contaminated with samaenlla can cause food poisoning in consumersT/F For the following MONGODB database, business1000, how do I write these queries?list the businesses in decreasing order of the review counts Identify all possible positions that could be deprotonated based on the mechanism that you chose in Problem O A O B O C O D O EO F the total surface area of a closed cylinder is 5000cm3 find the dimensions of the cylinder that maximize its volume and state this maxiumum volume. veryfiy that is is a maximum point RESEARCH 2022 G...11 OPTION 2.docx : Guidelines for discussion 7 THE IMPACT OF DROUGHTS IN SOUTH AFRICA RESEARCH TOPIC: Introduction: Mapping: Find a map of South Africa, that indicate the drought-stricken areas. Annual Rainfall graphs of the past FIVE years. Brief discussion on the annual rainfall graphs ( EIGHT LINES) Pictures of the different types of droughts. pipelines have an operating ratio of: group of answer choices high 90s low 90s mid 80s mid 70s high 50s Amange in ascending order: 9-3,4-6.2-4) 1-7-31,-5-3x2pls help with this pls enter the correct answer Construct a Zn2+/ZnCu2+/Cu cell with a positive cell potential in the voltaic cells interactive to answer the questions.Which way are electrons flowing through the external circuit?a) left to rightb) no movementc) right to left What general statement can you make about the global distribution of smartphone minerals? Starting with a square whose perimeter is 36, I from a rectangle by doubling the length of two of the sides and tripling the length of the other two sides. This rectangle's perimeter is a(n) ________ facilitates the solution to unstructured problems by a set of decision makers working together as a group. X = 4NY = 5NZ = 10 NThree books (X, Y, and Z) rest on a table. The weight of each book is indicated. The force of book Z on book Y is:A. 0B. 5NC. 9ND. 14NE. 19N Milan took 3 1/4 hours to clean the bathroom. He took 1/8 hours to clean the bathroom. How much longer did it take Milan to clean the bathroom? Write your answer as a mixed number in simplest form. Which of the following is an example of epeirogeny?A. RockiesB. HimalayasC. AppalachiansD. Colorado PlateauE. none of the above is an example of epeirogenyAB. all of the above are examples of epeirogeny The spinner shown is used in a game and is equally likely to land on each section. Find each probability.P(less than 5)Fraction= Percent= %Likelihood= impossible, unlikely, equally likely, likely, certainP(shaded)Fraction=Percent= %Likelihood= impossible, unlikely, equally likely, likely, certainP(not shaded)Fraction=Percent= %Likelihood= impossible, unlikely, equally likely, likely, certainPLEASE ANSWER WILL GIVE BRAINIEST This photo shows a behavior of a plant that is maintaining homeostasis when this happens openings in the plants leaves close up. How does this behavior help a plant maintain a homeostasis?