1. A pair of supplementary angles is shown. One angle measures 10x and the other angle measures 70 degrees.What is the value of x?

A) 10°
B) 11°
C) 20°
D) 21°

2. A right angle is shown divided in two parts. The measure of the angle of one part is 30 degrees and the measure of the other part is 5x plus 15 degrees. What is the value of x?

A) 3
B) 9
C) 12
D) 15

Answers

Answer 1

Answer: 1.
supplementary add to 180
10x+70=180
minus 70 both sides
10x=110
divid both sides by 10
x=11 degrees
B

2.
right angle is 90 degrees
30+5x+15=90
5x+45=90
minus 45 both sides
5x=45
divide 5 both sides
x=9
B

1. B
2. B

Answer 2

Answer:

1) 10x+70 = 180

10x = 180-70

10x = 110

x =11

2) 5x+15+30 =90

5x = 90-45

x = 45/5

x = 9

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An equation is shown below:
-2c = pm2 - n

Which equation is solved for m?

Answers

If you would like to solve the equation -2c = pm^2 - n for m, you can do this using the following steps:

-2c = pm^2 - n
-2c + n = pm^2 /p
m^2 = (-2c + n) / p
m = sqrt((-2c + n) / p)

The correct result would be the second answer; m = sqrt((-2c + n) / p).

I am a solid figure with faces that are polygons.

Answers

Hey There!

A solid figure with polygon faces is called the Polyhedron.

Have A Brainly Day :)

A polyhedron

Let God bless your night !

What does the term expected count mean and how is it calculated

Answers

Expected count refers to the projected frequencies expected in every cell when the variables are independent. The expected count is calculated by multiplying the row total and the column total; the product of which shall be divided by the sample size.

Solve for D

Hd + 4Md = g

Answers

Answer:

d = g/(H + 4M)

Step-by-step explanation:

The question in the attachment asks for d, not D. We'll solve for d.

Hd + 4Md = g

d(H + 4M) = g [remove d from (Hd + 4Md)]

d = g/(H + 4M) [Divide both sides by(Hd + 4Md)]

-What is the midpoint between the points (7, 3) and (-5, 5)?

Answers

Answer:

The midpoint is ( 1,4)

Step-by-step explanation:

To find the x coordinate of the midpoint add the x coordinates of the endpoint and divide by 2

( 7+-5)/2 = 2/2 =1

To find the y coordinate of the midpoint add the y coordinates of the endpoint and divide by 2

( 3+5)/2 = 8/2 =4

The midpoint is ( 1,4)

What value completes the square for the expression? x2 - 18x

i got -9

Answers

I hope this helps you

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