A certain math test has a mean of 50 and a standard deviation of 12. the teacher wants to convert the scores to a new scale using the transformation x*=65+0.6x. what are the new mean and standard deviation?

a) mean=50, standard deviation=7.2
b) mean=95, standard deviation=7.2
c) mean=95, standard deviation=12
d) mean=95, standard deviation=72.2
e) mean=77, standard deviation=12

Answer:

90º

Step-by-step explanation:

A triangle = 180º.

m<Z = 90º

So m<x + m<y = 180 - 90

That equals 90º

Hope that helps!

The total amount Gustus spent on shoes, before tax is $59.94.

Given that, Gustus bought three pairs of shoes. Each pair costs $19.98.

Multiplication is an operation that represents the basic idea of repeated addition of the same number. The numbers that are multiplied are called the factors and the result that is obtained after the multiplication of two or more numbers is known as the product of those numbers.

Now,

Total amount =Number of pairs of shoes ×Cost of one pair of shoe

= 3 ×19.98

= $59.94

Therefore, the total amount Gustus spent on shoes, before tax is $59.94.

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Answer:

Step-by-step explanation:

( 0, 0) and (-3 , -2)

Slope = Change in y ÷ change in x

          [tex]= \frac{-2-0}{-3-0}\\\\=\frac{-2}{-3}\\\\=\frac{2}{3}[/tex]

Answer:

5.26049171503e+40

Step-by-step explanation:

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x+106=100(corresponding angle)

x=100-106

x= -6

Answer:

0.375

Step-by-step explanation:

..

Answer:

4.5 Cubic Feet

Step-by-step explanation:

1. You want to find the volume of the box. (Length x width x height)

2.5 x 2 x 1.5 = 7.5

2. The present has a volume of 3 cubic feet, so you would subtract that from the volume of the box.

7.5 - 3 = 4.5

3. The volume of the empty space in the box is 4.5 cubic feet.

Hope this helped! :)

Answer:

10. 32 & 37

11. 3 & 4

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(P.S. if you need an explanation just ask in comments)

Find x to the nearest degree

a. 45

Answer: i can barely see that if you wanna make another pic i prolly can but i think 4 and 8 are a linear

Step-by-step explanation:

Step-by-step explanation:

Buh fr buh

The answer would be 128z^9.

This is because when you multiply exponents with a variable (z), you keep the base the same (8z and 16z), but you add the exponents together.

Answer:

m<A= 14 and m<C= 119

Step-by-step explanation:

Hope this helps, have a nice day :)

Answer:

<A= 14 and <C= 119

Step-by-step explanation:

Answer:

1.375

Step-by-step explanation:

Answer:

1.375 would be the answer because if you turn 3/8 into a decimal it = 0.375 so you add the 1 + 0.375 = 1.375 total

Step-by-step explanation:

Answer:

-5x - 16y - 24z

Step-by-step explanation:

5x - 2y - 6z - 10x - 14y - 18z

5x - 10x - 2y - 14y - 6z - 18z

-5x - 16y - 24z

Given:

Number of blue marbles = 6

Number of red marbles = 4

Number of green marbles = 4

Choose one marble without looking,

To find:

The probability that the selected marble is red or green.

Solution:

For the given problem,

Total outcomes = Total number of marbles

                          = [tex]6+4+4[/tex]

                          = [tex]14[/tex]

Favorable outcomes = Number of red or green marbles.

                        = [tex]4+4[/tex]

                        = [tex]8[/tex]

The probability that the selected marble is red or green, is

[tex]P=\dfrac{\text{Favorable outcome}}{\text{Total outcomes}}[/tex]

[tex]P=\dfrac{8}{14}[/tex]

[tex]P=\dfrac{4}{7}[/tex]

Therefore, the probability that the selected marble is red or green, is [tex]\dfrac{4}{7}[/tex].

Answer:B: 42.8%

Step-by-step explanation:because if you subtract all the money she used from the salary she will still have most of her money and I did the math and I got 42.8%

Answer:

3

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Answer:

x = 9, 2

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

The values of x that make the expressions x² - 6x and 5x - 18 equal to each other are x = 2 and x = 9.

Two or more expressions with an Equal sign is called as Equation.

To find the values of x that make the expressions  x²  - 6x and 5x - 18 equal to each other

We have to set them equal to each other and solve for x:

x² - 6x = 5x - 18

x²  - 11x + 18 = 0

Next, we can factor this quadratic equation:

(x - 2)(x - 9) = 0

Now we can use the zero product property and set each factor equal to zero:

x - 2 = 0 or x - 9 = 0

Solving for x, we get:

x = 2 or x = 9

Therefore, the values of x that make the expressions x² - 6x and 5x - 18 equal to each other are x = 2 and x = 9.

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2.952

Step-by-step explanation:

First you must convert 3.6% into a decimal which is 0.036 (or move the decimal over twice).

Then multiply 82 by the given decimal

82 x 0.036= 2.952

(round if necessary)

Answer:

1 answer will be false and second answer will be true

Answer:

4x

Step-by-step explanation:

I think the answer is 4X.on the other hand, I think the answer is x + 4 because we were told you can't mix goats with cows.it is the same thing with x + 4 so if the answer isn't 4 x it is x + 4 I'm not quite sure which is the answer hope it helps.