Please Solve question

Please Solve Question

Answers

Answer 1

The component form of two vectors 2u - v is (10, 0), no magnitude in the second direction.

What is a vector?

A vector is a quantity that has both magnitude and direction.

Given are two vectors u = (4, - 1) and v = (-2, - 2).

∴ The value of 2u - v in component form is 2(4, - 1) - (-2, - 2).

2u - v = (8, - 2) - (-2, - 2).

2u - v = (8+2, - 2+2).

2u - v = 10

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Related Questions

Construct a polynomial function with the stated properties. Reduce all fractions to lowest terms. Third-degree, with zeros of −3, −2, and 1, and passes through the point (2,8).

Answers

The third-degree polynomial function for the given circumstances will be 5y=2(x-1)(x+3)(x+2) with zeros of 3, 2, and 1 and passes through the point (2,8).

What is polynomial?

Sums of terms of the form k-x^n, where k is any number and n is a positive integer, make up polynomials. For instance, the polynomial 3x+2x-5. a description of polynomials. The concepts degree, standard form, monomial, binomial, and trinomial are all covered in this video. An expression that consists of variables, constants, and exponents and is combined using mathematical operations like addition, subtraction, multiplication, and division is referred to as a polynomial.

Here,

y=a(x+3)(x+2)(x-1)

x=2 and y=8

8=a(2+3)(2+2)(2-1)

8=a*5*4

a=8/20

a=2/5

y=2/5(x+3)(x+2)(x-1)

5y=2(x+3)(x+2)(x-1)

The polynomial function for given conditions that is third-degree, with zeros of −3, −2, and 1, and passes through the point (2,8) will be 5y=2(x+3)(x+2)(x-1).

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Find Volume of a cone

Answers

Answer:

Your answer is 65.97 meters.

Hence, the volume of the cone is [tex]64.998m[/tex] meters.

What is the volume of cone?

The volume of a cone defines the space or the capacity of the cone. A cone is a three-dimensional geometric shape having a circular base that tapers from a flat base to a point called apex or vertex.

Here given that,

The radius of cone is [tex]3m[/tex] and a height of a cone is [tex]7m[/tex].

As we kow the volume of cone is [tex]\pi r^2\frac{h}{3}[/tex].

Now substitute the values in the general formula of cone then,

[tex]V=3.14(3)^2\frac{7}{3}\\\\V=3.14(9)(2.3)\\\\V=3.14(20.7)\\\\V=64.998m[/tex]

Hence, the volume of the cone is [tex]64.998m[/tex] meters.

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A two digit number is such that sum of the ones and tens digit is 10.If the digits are reversed, the new number formed exceeds the original number by 54. Find the new number​

Answers

Let the tens digit of the original number be x and the ones digit be y. The original number is 10x + y, and the new number formed by reversing the digits is 10y + x.

Since the new number exceeds the original number by 54, we can set up the equation:

10y + x = 10x + y + 54

9x - 9y = 54

x - y = 6

Since x and y are both digits, they must both be integers. The only solution to this equation that satisfies this condition is x = 8 and y = 2.

Therefore, the original number is 82 and the new number formed by reversing the digits is 28. This is the new number.

........... i need help past due

Answers

Answer:

[tex]\frac{16}{35}[/tex]

Step-by-step explanation:

[tex]\frac{\frac{2}{5} }{\frac{7}{8} }[/tex]

There is a couple of ways that you can do this.  I am going to divide the top and bottom fractions by [tex]\frac{8}{7}[/tex]

[tex]\frac{\frac{2}{5} }{\frac{7}{8} }[/tex] x [tex]\frac{\frac{8}{7} }{\frac{8}{7} }[/tex] = [tex]\frac{\frac{16}{35} }{\frac{56}{56} }[/tex] = [tex]\frac{\frac{16}{35} }{1}[/tex] = [tex]\frac{16}{35}[/tex]

Kara downloaded 384 selfies from her cell phone to her laptop. These selfies took up 768 megabytes of space on her laptop. Each selfie took up the same amount of space. How many megabytes do 40 selfies take up?

Answers

Answer:

80 megabytes

Step-by-step explanation:

768/384= 2 megabytes per photo

40 x 2 = 80 megabytes

Please help! Worth more points will mark as brainiest

Answers

Answer:

252 m^2

Step-by-step explanation:

The equation for surface area in a rectangular prism is SA = 2 (lh +wh + lw ).

So when we plug in the numbers inti the equation we do SA = 2(12×3 + 6×3 + 12×6)

FOLLOW P.E.M.D.A.S (parentheses, exponents, multiplication, division, addition, subtraction)

we get SA = 2(36 + 18 + 72)

then we multiply 2, by each of the numbers.

SA = (72 + 36 + 144)

Add them together and you get

SA = 252

12. CT has a point C at (-7,-9) and point T at (9,7).
What are the coordinates of the midpoint?
A) (-1,-1)
C) (-1, 1)
B) (1,-1)
D) (1, 1)

Answers

The midpoint of CT is located at (b) (1, -1)

How to determine the coordinates of the midpoint?

From the question, we have the following parameters that can be used in our computation:

C = (-7, -9)

T = (9, 7)

The midpoint of the line CT can then be calculated as

Midpoint = 1/2 * (C + T)

So, we have the following representation

Midpoint = 1/2 * (-7 + 9, -9 + 7)

Evaluate

Midpoint = 1/2 * (2, -2)

So, we have

Midpoint = (1, -1)

Hence, the midpoint is (1, -1)

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Tyler’s cell phone has a $50 charge each month, but no initial fee. On the same coordinate plane, graph the cost of Tyler’s cell phone plan over a period of two years. Then describe how the two graphs are the same and how they are different

Answers

1, 50. 2, 100. Etc. Since there is no initial fee the y-intercept is 0.

Rebecca buys some scarves that cost $5 each and 2 purses that cost $12 each. Rebecca can spend AT MOST $39. Write an inequality that can be used to find the number of scarves she can buy.

Answers

Answer:

$39-($12x2)=$15

$15 ÷$5=3scarves

Step-by-step explanation:

Given two functions:
f(x) = -8x^3 + 9x^2 - 7x + 8
g(x) = −4x^3+ 3x^2 - 4x - 6
Find (f+g)(x)

Answers

Sum of two function f(x) and g(x) is -12x³+12x²-11x+2

What is function?

A mathematical expression that indicates a relationship between independent variable and dependent variable. If x is an independent variable function is denoted by f(x) or g(x).

How do we determine the sum of two function?

we are given two functions f(x)= -8x³+9x²-7x+8

                                           g(x)= -4x³+3x²-4x-6

now we need to add these two. f(x)+g(x)= -12x³+12x²-11x+2

hence, we obtain another function.

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A lake fishing map is laid out on a coordinate plane with each unit equal to 1 mille. The boat is launched from the point (7,0) and goes to point (7.-7) to fish. From there, the boat
travels to (0, -7) to fish and then goes back to the launch point.
Determine the total number of miles traveled. Round to the nearest whole number.
•10 miles
•12 miles
•14 miles
•24 miles

Answers

The total number of miles traveled by the boat, found using Pythagorean Theorem, rounded to the nearest whole number is about 24 miles

What does the Pythagorean Theorem state?

Pythagoras theorem indicates that the square of the hypotenuse side of a right triangle is the same as the sum of the squares of the legs.

The coordinates of the location of the boat as goes to fish are;

The coordinate of the point at which the boat is launched = (7, 0)

The coordinate of the point at which the boat goes to fish = (7, -7)

The coordinate of the location the boat then travels to in order to fish = (0, -7)

Let A represent the point (7, 0), and let B represent the point (7, -7), and let C represent the point (0, -7), we get;

A(7, 0), B(7, -7), C(0, -7)

The length of segment AB = 0 - (-7) = 7

Length of segment BC = 7 - 0 = 7

The x and y-coordinates of the points A and C are different therefore, the length of the segment AC can be found using the distance formula used for finding the distance between two points on the coordinate plane (a form of the Pythagorean Theorem)  as follows;

d = √((x₂ - x₁)² + (y₂ - y₁)₂)

The distance between the points A(7, 0), and C(0, -7), is therefore;

Length of segment AC = √((0 - 7)² + (-7 - 0)²) = 7·√2

The total number of miles the boat traveled is therefore;

Total distance traveled = AB + BC + AC

Therefore;

Total distance traveled = 7 + 7 + 7·√2 ≈ 23.889 ≈ 24

The total distance the boat travels is about 24 miles

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Stevensville has a population of 114,000. The population is decreasing at a rate of 1.5% each year. Which of the following functions would evaluate this situation?
p(s)=114000.0.985³
p(s) =114000
p(s)=114000x+0.985
None of the choices are correct.

Answers

Answer:

none of the choices

Step-by-step explanation:

normally, the form for the answer would be p(s)=Ab^x, but I don't see that here in any of the answer choices. The answer would be p(s)=114,000(0.985)^x.

hope this helps, but downvote this answer if it is wrong :(

Subtracting a number is the same as adding its additive inverse. For which elevation do we need to find the additive inverse? What is the additive inverse of that elevation?

Answers

Yes subtracting a number is the same as adding its inverse. We have to find the additive inverse of a function.

What is additive inverse?

The additive inverse of a number is the number which when we add to the number results zero.

How to find additive inverse?

Complex numbers are made up of both real and fictitious numbers. A + iB, where A is the real number and B is the imaginary number, is a complex number.

The additive inverse of A + iB should now be a value that, when added to a given complex number, produces the result zero. It will therefore be -(A + iB).

Suppose we have to find additive inverse of 5.

Let the additive inverse of 5 be x.

So,5+x=0

x=-5

So the additive inverse of 5 is -5.

Hence to find additive inverse of a positive number we have to just put a negative mark and for a negative number we have put positive mark in front of the number.

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The function f(x) = 150 - 8x represents the distance, in miles, remaining on a trip
x hours into the trip. What is the value of f(5)?

Answers

It’s 110 since when you substitute x for you get 150-8(5) which equals to 110
150-8*5 =
110
That’s the answer

The sides of a hexagon are 2, 3, 2, 4, 7, and 6. Find the perimeter of a similar hexagon
with two sides of length 3.

Answers

The perimeter of hexagon is 24 unit. It is an irregular hexagon.

What is hexagon?

A geometrical shape having six straight sides and six angles. The hexagon that has all six sides equal is called regular hexagon and if inequal lengths available is termed as irregular hexagon.

What is perimeter of hexagon?

The term perimeter refers to the total length calculated along the boundary of a geometrical shape. Perimeter of a hexagon is six times of its length if it has similar six length. But the hexagon having variable side length is measured by adding the total six length.

we are given a hexagon that is irregular. sides are 2, 3, 2, 4, 7, 6 unit

now perimeter = 2+3+2+4+7+6

                        = 24 unit

hence, perimeter is 24 unit.

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Simplify the expression. 4x^10 y^-3 over 12x-2y

Answers

The expression 4x^10 y^-3 over 12x-2y is x^8 y^-2 / 3

How to solve the expression:

Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression.

1. Eliminate terms from the denominator and numerator.

2. Combine terms that have been multiplied into a single fraction.

3. Add exponents together.

Here, (Given)

4x^10 y^-3 /12x-2y

solving the expression we get

4x^10 / 12x = x^8 / 3

y^-3 / 2y = y^-2

=> x^8 y^-2 / 3

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. An expression's structure is as follows: Expression: (Math Operator, Number/Variable, Math Operator).

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Find the 9th term

1/8 , 1/2 , 2…

Answers

You multiply by two or square it. The ninth term will be 128

What is 30% off $75?

Answers

Answer:

22.5

Step-by-step explanation:

Answer:

22.5

Step-by-step explanation:

= (0.3)(75) = 22.5

Hope this helps

What is the inequality shown? -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 23 4 5 6 7 8

Answers

Answer:

-4<x≤5

Step-by-step explanation:

first at negative 4 there is a white dot and it’s pointing right so x is greater then it

And at 5 it is a closed dot pointing left so x is less then and equal to 5

Hopes this helps

Dean Willis earns $315.75 per weck. The Social Security tax rate is 6.2% and Medicare tax is 1.45% of gross pay. How much is the deduction from his pay check for Social Security and Medicare?

Answers

The total deduction from Dean's paycheck for Social Security and Medicare is $24.11.

What is a percentage?

A percentage is a way of expressing a number as a fraction of 100. It is often used to express a proportion or a ratio, and is denoted by the symbol "%".

To find the deduction from Dean's paycheck for Social Security and Medicare, we need to calculate the total amount of tax that he owes based on his gross pay.

First, we can calculate the Social Security tax by multiplying Dean's gross pay by the tax rate:

Social Security tax = $315.75 x 6.2% = $19.54

Next, we can calculate the Medicare tax by multiplying Dean's gross pay by the tax rate:

Medicare tax = $315.75 x 1.45% = $4.57

To find the total deduction from Dean's paycheck, we can add the two amounts:

Total deduction = $19.54 + $4.57 = $24.11

Hence, the total deduction from Dean's paycheck for Social Security and Medicare is $24.11.

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one method used to measure diversity in a given area is the simpson index. a. how is it calculated?

Answers

Method used to calculate the measure of diversity of species of a particular community is Simpson diversity index which is given by

d = ∑nₐ(nₐ - 1)/N(N - 1).

As given in the question,

Let us consider 'd' represents the diversity of the species in a particular community.

nₐ represents the number of organism  belongs to a particular given species .

N represents the total number of organism present.

Then calculation of Simpson diversity index is given by :

d =∑nₐ(nₐ - 1)/N(N - 1)

The range of the diversity of Simpson diversity index is in between 0 to 1.

Therefore, the calculation Simpson diversity index is given by

d = ∑nₐ(nₐ - 1)/N(N - 1).

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What are the vertices of ΔA'B'C produced by T⟨−3, 6⟩ (ΔABC) = ΔA'B'C? The graph with X-coordinate marks -4, -2, 0, 2, 4 and Y-coordinate mark -4, -2, -1, 0, 2, 4. -The triangle ABC with coordinates A at (3, 0), B at (3, -2), C at (0, -3).

Answers

[tex]\end{aligned}$$[/tex]So the new coordinates will be ( 0,6 ) , ( 0,4 ) , ( -3 , 3 )

What are coordinates of triangle ?

A special example of barycentric coordinates for a triangle is referred to as triangular coordinates, and it is also known as a ternary plot or areal coordinates. Triangular coordinates can also refer to any of at least three other related systems of coordinates in the Euclidean plane.

Given[tex]$\[/tex] triangle ABC[tex]$[/tex] has co-ordinates:

A=(3,0), [tex]\quad[/tex]B=(3,-2), C(0,-3)

Now transaction of [tex]$(-3,6)$[/tex]  is applied on  Co-ordinates of [tex]$\triangle A B C$[/tex]. Therefore, new Co-ordinates will become:

[tex]$$[/tex] A[tex]^{\prime}= ( 3-3 , 0 + 6 ) = (0,6) . \\[/tex]

B[tex]^{\prime}=(3-3,-2+6)=(0,4) . \\[/tex]

C[tex]^{\prime}=(0-3,-3+6)=(-3,3)[/tex]

[tex]\end{aligned}$$[/tex]So the new coordinates will be ( 0,6 ) , ( 0,4 ) , ( -3 , 3 )

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It takes Andre 4 minutes to swim 5 laps. How many minutes per lap is that?

Answers

Answer: 0.8 minutes

Step-by-step explanation:

4 divided by 5 =0.8

Answer: 0.8 minutes per lap

Step-by-step explanation:

divide the number of minutes by the number of laps to get a minutes per lap

4/5=0.8

what is the equation for the function (2,44) and (5,80)

Answers

Answer:

5, 80

Step-by-step explanation:

because 5b / 280 = c2 - b2

Answer:  y= 12x +22

Step-by-step explanation:

Find the slope and y intercept

if you test for the for the mean of the differences in a paired t-test, there are how many degrees of freedom?

Answers

There is zero or no degree of freedom in  the mean of the differences in a paired t-test.

For the paired t-test, we need two variables. One variable defines the pairs for the observations. The second variable is a measurement. Sometimes, we already have the paired differences for the measurement variable. Other times, we have separate variables for “before” and “after” measurements  for each pair and need to calculate the differences.

We also have an idea, or hypothesis, that the differences between pairs is zero. It is also known as the dependent samples t-test, the paired-difference t-test, the matched pairs t-test and the repeated-samples t-test.

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Write an expression that represents the height of a tree that begins at 8.4 feet and increases by 3.8 feet per year. Let's describe the number of years.

Answers

Answer: 8.4 + 3.8y

Step-by-step explanation: The expression is 8.4 + 3.8y ( y represents the amount of years multiplies by 3.8 or the amount grown per year )

Unless there is a total of height or the amount of years there is no way to  complete this problem because there is an infinite number of possibilities.

What system of linear inequalities is shown in the graph?

Answers

Answer:

y>x?

Step-by-step explanation:

For a project in his Geometry class, Yusuf uses a mirror on the ground to measure the height of his school building. He walks a distance of 13.95 meters from the school, then places a mirror on flat on the ground, marked with an X at the center. He then steps 2.15 meters to the other side of the mirror, until he can see the top of the school clearly marked in the X. His partner measures the distance from his eyes to the ground to be 1.35 meters. How tall is the school? Round your answer to the nearest hundredth of a meter.

Answers

The height of the school is 9 meters.

What is proportion?

A proportion is an equation in which two ratios are set equal to each other. For example, if there is 1 boy and 3 girls you could write the ratio as 1 : 3 (for every one boy there are 3 girls) 1 / 4 are boys and 3 / 4 are girls. 0.25 are boys (by dividing 1 by 4).

Angle of incidence = Angle of reflection

As we can see in the picture attached, both the angles (θ) are equal.

m∠ACB = m∠ECD = 90° - θ

m∠ABC = m∠ADC = 90°

Therefore, both the triangles ΔABC and ΔEDC will be similar.

And by the property of similar triangles, their corresponding sides will be proportional.

 AB/ED = CB/CD

1.35/ED = 2.15/13.95

     ED = 8.75 meters

     ED ≈ 9 m.

Hence, the height of the school is 9 meters.

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5x -4 =19 please help me it’s for my do NOW

Answers

5x - 4 = 19
Add 4 to both sides
5x = 23
Divide 23 by 5
x = 4.6
Also can be expressed x = 23/5 or x = 4(3/5)

c) what is an expression for C in terms of b?​

Answers

Answer:

[tex]c=5b[/tex]

Step-by-step explanation:

Since we're solving for c, it should be by itself (normally on the left). If you look at the table, c is just 5 times what it's corresponding b value is, so that's what you write as the equation.

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