in the multiplication example shown different letters represent different digits find the value of a and of b

Answer:$441.05

Step-by-step explanation:

For this question you would multiply the amount of each DVD by the price and add them all up

like this:

11(27.95) +7(17.95)+1(7.95)=$441.05

Answer:

35cm^2

Step-by-step explanation:

Things To Keep In Mind:

Height: 7 cm

Length: 10 cm

(L*H)/2=area of triangle

7*10=70

70/2=35

If there are any problems with this answer please feel free to tell me, thanks :)

Answer:

-9.661

Step-by-step explanation:

Adding a negative is the same as subtracting a positive and you started with a negative number so:

-6.05

-3.611

------------

-9.661

Answer: -9.661

Step-by-step explanation:

A negative plus a negative will ALWAYS equal a negative. If you have an addition with two negatives, just add them normally and add the negative sign:
-6.05+(-3.611) = 6.05 + 3.611

6.05 + 3.611 = 9.661

Now add the negative sign:

9.661 = -9.661

Hope this helps!!

The interest over 18 months will be $105.00 if Margo borrows $1000, agreeing to pay it back with 7% annual interest.

It is defined as the interest on the based on the principal amount, it does not include the compounded amount. The interest calculate on the initial amount or borrowed amount.

It is given that:

Margo borrows $1000, agreeing to pay it back with 7% annual interest after 9 months

I = Prt

= 1.5 x 7%

= 1.5 x .07

= 0.105

= $1000 x .105

= $105.00

Thus, the interest over 18 months will be $105.00 if Margo borrows $1000, agreeing to pay it back with 7% annual interest.

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The ratio shows how many times one value is contained in another value.

The ratio of office buildings to hotels will be 9 : 4.

The ratio shows how many times one value is contained in another value.

Example:

There are 3 apples and 2 oranges in a basket.

The ratio of apples to oranges is 3:2 or 3/2.

We have,

The ratio of hotels to office buildings = 4 : 9

Now,

The ratio of office buildings to hotels will be 9 : 4.

Thus,

The ratio of office buildings to hotels will be 9 : 4.

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The coordinates of the turning point on the curve with the quadratic equation y = 9 + 18x - 3x² is (3,36).

What is a quadratic equation?

Any equation of the form where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

It is given that:

The quadratic equation is:

y = 9 + 18x - 3x²

To find the turning point:

Graph the above quadratic equation;

From the graph:

The maximum point from where the graph starts to decrease is (3,36)

Thus, the coordinates of the turning point on the curve with the Quadratic equation y = 9 + 18x - 3x² is (3,36).

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The number of hours when Jai and Keilantra are the same distance from the stadium is 3 hours.

Jai is 254 miles away from the stadium. Jai is driving along the highway at a speed of 41 miles per hour. This will be:

254 - 41h

Keilantra is 293 miles away from the stadium. Keilantra is driving at speed of 54 miles per hour. This will be:

293 - 54h

The equations will be:

254 - 41h = 293 - 54h

54h - 41h = 293 - 254

13h = 39

Divide

h = 39/13

h = 3

The number of hours is 3 hours.

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4,034.06 ,5,965.94 are confidence interval for the population average wages at the factory.

What is confidence interval estimation?

Your estimate's mean plus and minus the range of that estimate's fluctuation is called a confidence interval.

                                              If you repeat your test, you can expect your estimate to fall between these numbers with a reasonable degree of certainty.  Another term for probability in statistics is confidence.

The formula for confidence interval estimation is:

μ = M ± Z(sM)

where:

M = sample mean

Z = Z statistic determined by confidence level

sM = standard error = √(s2/n)

M = 50000

Z = 2.58

sM = √(30002/64) = 375

μ = M ± Z(sM)

μ = 50000 ± 2.58*375

μ = 50000 ± 965.94

μ = 4,034.06 ,5,965.94

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The population of the state in 2000 was 23.1 million and the population will be 28.3 million after 13.4 years.

The definition of an exponential function is given by the equation

y = aeᵇˣ, where bx is an exponent.

The given equation is [tex]A = 23.1e^{0.0152t}[/tex].

To find the population of the state in 2000, substitute t = 0 in the given equation:

[tex]A =23.1e^{0.0152(0)}\\\\A = 23.1[/tex]

Now, Substitute A = 28.3 into the given equation and solve for t:
[tex]28.3=23.1e^{0.0152t}\\\\e^{0.0152t}=1.2251\\\\0.0152t=\ln(1.2251)\\\\0.0152t=0.2030\\\\t=13.4[/tex]

Hence, the population of the state in 2000 was 23.1 million and the population will be 28.3 million after 13.4 years.

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Answer:

4x=4   or 4tims x =y

Step-by-step explanation:

1x4=4

3x4-=12

18,564 different groups of 6 children can be driven.

Here we are given 18 Children in total and we can fit Only 6 Children out of them.

The number of different groups of 6 children that can fit into the van ca be calculated with a simple formula

The formula used will be -

n! = n(n-1)(n-2)(n-3).......1

n!= (18 x 17 x 16 x 15 x 14 x 13) / (6 x 5 x 4 x 3 x 2)

  = 18,564

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The number of leaves on a tree which is 2 yards tall and receives 9 hours of sunlight is 324 leaves.

z = k × y × x

Where,

If y = 10 yards, x = 3 hours, z = 540 leaves

z = k × y × x

540 = k × 10 × 3

540 = 30k

k = 540/30

k = 18

Then, find z when y = 2 yards and x = 9 hours

z = k × y × x

= 18 × 2 × 9

z = 324 leaves.

In conclusion, given the constant of proportionality, the number of leaves on the tree is 324 leaves.

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Answer:

second

Step-by-step explanation:

2x+5>7

2x>2

x>1

therefore, second

Applying the property of exponents, the remainder that the number 10^2023 leaves after division by 13 is 9.

The remainder is the amount left over after a division operation.

An exponent is a number that indicates how many times a base number is used as a factor in a multiplication expression.

From the property of exponent:

We can rewrite 10^2023 as (10^13)^155 * 10^8:

10^2023 = (10^13)^155 * 10^8

We can then use the property of exponents to simplify:

10^2023 = (10^(13*155)) * 10^8

Since 10^13 is congruent to 1 mod 13, 10^(13*155) is congruent to 1 mod 13 as well. Therefore, 10^2023 is congruent to 10^8 mod 13.

We can find the remainder by calculating 10^8 mod 13:

10^8 = 100000000

After dividing 100000000 by 13, we get a remainder of 9.

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Step-by-step explanation:

-4y = 5x - 12

4y = -5x + 12

y = -5/4x + 3

Answer:

Step-by-step explanation:

I know that in point-slope form, the equation is y - y1 = m(x - x1)

Fill in y1 and x1 with the points given in the multiple choices.

If you look at Letter A, it shows the point (0,9). If you fill that in the formula. You solve the equation:

y - 9 = -3/4(x - 0)

y - 9 = -3/4x

+9.     =.  +9

y = -3/4x + 9

Therefore your answer is letter A.

The equation of Total Charges will be $1.95 + ($2.7 * x)

What is Linear Equation in One Variable?

A linear equation is a one-variable equation of a straight line. The variable's only power is 1. Linear equations in one variable have the form ax + b = 0 and are solved using simple algebraic techniques.

Solution:

The equation of Total Charges will be

Let, the total distance in miles be x

Then,

Total Charges = $1.95 + ($2.7 * x)

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There is sufficient evidence to support the claim.

What is sufficient evidence ?

Sufficient evidence is admitted evidence that has enough overall weight, in terms of relevance and credibility, to legally justify a particular conclusion.

This is left tailed test .

The null and alternative hypothesis is ,

H0 :  mu= 34

Ha :mu < 34

Test statistic(t) = (x)

n= root (29.5 - 34) / 1.70

root 35

Test statistic = -15.66

P-value = 0

Alpha = 0.05

P-value <Alpha

Reject the null hypothesis .

There is sufficient evidence to support the claim.

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The solutions of the given system of Equations are (5/2, 41/2).

The set of values for each variable in a system of linear equations is referred to as the solution set.

The intersection or meeting points of the lines or planes used to illustrate the linear equations are also known as the solutions.

The elimination method is one way of resolving a system of linear equations. To obtain the equation in one variable using this technique, simply add or subtract the equations.

Here we have

y = 9x-2 --- (1)

y = 7x+3 --- (2)

From (1) and (2)

=>  9x - 2 = 7x + 3

=>  9x - 7x = 3 + 2

=> 2x = 5

=> x = 5/2

Substitute x = 5/2 in (1)  

=> y = 9(5/2) - 2  

=> y = (45/2) - 2

=> y = (45 - 4)/2

=> y = 41/2

Therefore,

The solutions of given system of Equations are (5/2, 41/2).

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Hello,

I hope you and your family are doing well!

A) To find the annual growth rate between 1991 and 2008, we can use the compound interest formula:

S = P(1 + r)

Where S is the final value of the house, P is the initial value of the house, and r is the annual growth rate.

Plugging in the values from the problem, we get:

165,000 = 95,000(1 + r)

Dividing both sides of the equation by 95,000 gives:

1.737 = 1 + r

Subtracting 1 from both sides of the equation gives:

0.737 = r

The annual growth rate between 1991 and 2008 is 0.737.

B) To express the growth rate in percentage form, we can multiply it by 100%:

0.737 * 100% = 73.7%

So the annual growth rate between 1991 and 2008 was 73.7%.

C) To find the value of the house in the year 2011, we can use the compound interest formula again, with the initial value of the house set to the final value in 2008:

S = P(1 + r)

Plugging in the values from the problem, we get:

S = 165,000(1 + 0.737)

Solving for S gives:

S = 165,000 * 1.737 = 285,195

So the value of the house in the year 2011 will be approximately $285,195. Rounded to the nearest thousand dollars, this is $285,000

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Happy Holidays!

The null hypothesis (H0) would be that the population mean number of hours married men in your area spend on child care per week is equal to the reported mean of 6.0 hours per week.

The population mean number is equal to the reported mean according to null hypothesis. The alternative hypothesis (HA) would be that the population mean differs from the reported mean.

H0: μ = 6.0 hours/week

HA: μ ≠ 6.0 hours/week

b. To find the sample mean, we need to add up all of the values in the sample and divide by the number of values. The sample mean is 6.34 hours/week.

To calculate the test statistic, we can use the formula:

t = (x' - μ0) / (s / √n)

where x' is the sample mean, μ0 is the hypothesized mean (in this case, 6.0 hours/week), s is the sample standard deviation, and n is the sample size.

Plugging in the values, we get:

t = (6.34 - 6.0) / (3.23 / √40) = 0.34 / (0.53 / 6.32) = 0.34 / 0.08 = 4.25

The p-value is the probability of getting a result as extreme as the one we observed, given that the null hypothesis is true. In this case, we would need to use a t-distribution table or a computer program to find the p-value, since the sample size is small and the population standard deviation is unknown.

c. If we select a level of significance of 0.05, then we can use the p-value to make a decision about the null hypothesis. If the p-value is less than 0.05, we would reject the null hypothesis and conclude that the population mean differs from the reported mean. If the p-value is greater than 0.05, we do not have enough evidence to reject the null hypothesis and would conclude that the population mean is likely to be the same as the reported mean.

In this case, the p-value is greater than 0.207, so we do not have enough evidence to reject the null hypothesis. We would conclude that the population mean number of hours married men in your area spend on child care per week is likely to be the same as the reported mean of 6.0 hours per week.

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Profit is the money you have left after paying for business expenses.

The production of the products are given below with the profit as well:

a. Production of Product 1 = 50 units per week

b. Production of Product 2 = 0 units per week

c. Production of Product 3 = 145 units per week

d. Production of Product 4 = 10 units per week

e. Total Profit = $1250 per week

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Answer:

Step-by-step explanation:

A local manufacturing firm produces four different metal products, each of

which must be machined, polished and assembled. The specific time

requirements (in hours) for each product are as follows:

Machining,

hours

Polishing, hours Assembling,

hours

Product I 3 1 2

Product II 2 1 1

Product III 2 2 2

Product IV 4 3 1

Answer: To find the value of m in the equation W = 1/2 * m * v^2, you need to know the values of W and v. The variable m represents the mass of the object, and W represents the kinetic energy of the object. The equation states that the kinetic energy of an object is equal to 1/2 of its mass multiplied by its velocity squared.

If you are given the values of W and v, you can solve for m by rearranging the equation as follows:

m = 2 * W / v^2

Plugging in the values of W and v will give you the value of m.

For example, if W = 100 joules and v = 10 meters per second, the equation would be:

m = 2 * 100 joules / 10 m/s^2 = 20 kilograms

This is the mass of the object.

[tex]m=\frac{2W}{v^{2} }[/tex].

[tex]W=\frac{1}{2} mv^{2}[/tex]

[tex]\frac{W}{\frac{1}{2} v^{2} }=m\\ \\[/tex]

[tex]m=\frac{W}{\frac{1}{2} v^{2} }\\ \\m=\frac{2W}{v^{2} }[/tex].

Answer:

the width of the rectangle is -5/3 inches.

Step-by-step explanation:

To find the perimeter of the rectangle, we add together the lengths of all four sides. Since the rectangle is 5 inches long and 2x inches wide, the perimeter is given by:

Perimeter = 5 + 2x + 5 + 2x = 10 + 4x

To find the area of the rectangle, we multiply the length by the width. The area is given by:

Area = 5 * 2x = 10x

Setting the perimeter equal to the area, we have:

10 + 4x = 10x

Subtracting 10 from both sides, we have:

4x = 10x - 10

Combining like terms, we have:

-6x = -10

Dividing both sides by -6, we have:

x = 10 / -6

Simplifying, we have:

x = -5/3

Answer:

There Are 40 Bicycles And 23 Tricycles

Step-by-step explanation:

Let, x be bicycles and y be tricycles

Condition 1;

: x + y= 63

: x =63-y

Condition 2;

Number Of Tires=149

:2x + 3y =149 [2x=Two Tires Of Bicycle And

3y=Three Tires Of Tricycle]

:x = 149-3y/2

Combination 1 & 2;

63-y = 149-3y/2

126-2y = 149-3y

y=23

x = 63-23

=40

Rate percent is 10%

A coefficient that is a quotient of two values, where the denominator is written in percentage points and has the same units as the numerator when it is multiplied by a unit of time.

According to the given information

Sum of money ( principal ) P = 5000 rupees

Interest obtained in money = 1500 rupees

Time duration T = 3 years

According to the given information

I = P × T × [tex]\frac{R}{100}[/tex]

1500 = 500 × 3 × R/100

Rate percent is 10%

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Answer: b

Step-by-step explanation:

3^2 + x^2 = 9^2

9 + x^2 = 81

x^2 = 72

x = sqrt(72)

Answer:

Step-by-step explanation:

1) x - 1 = 2x - 2

-x = -1

x = 1

2) 4x = x + 3

3x = 3

x = 1

3) x + 1 = x + 1

infinite solutions (parallel lines)

For graphing, just look at the y-intercept, in the equation y = mx + b.

b is the y-intercept, so, for you plot the y-intercpet on the y-axis. You look at m, which is the slope. For positive, you go up how many ever it says in the numerator and then to the right how many ever it says in the denominator. For a negative you do the same thing except you go down and then to the right, or up and to the left. For positive there is only up and then to the right. I hope this answers your question.

The equation of the line joining the points (2,-8) and (5,6) is y = 14 / 3 x - 52 / 3

The equation of a line in slope intercept form can be represented as follows:

y = mx + b

where

Therefore, the equation of the line passes through the points (2,-8) and (5,6). Let's find the slope.

m = 6 + 8 / 5 - 2

m = 14 / 3

Let's find the y-intercept using (5, 6).

y = 14 / 3 x + b

6 = 14 / 3 (5) + b

6 = 70 / 3 + b

b = 6 - 70 / 3

b =  18 - 70/ 3

b = -52 / 3

Therefore, the equation is y = 14 / 3 x - 52 / 3

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Answer:

$1471.49

Step-by-step explanation:

1571.13-80=1491.13

1491.13+456.82=1947.95

179.48+74.73+82.70+139.55=476.46

1947.95-476.46=1471.49