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Slav-nsk [51]
3 years ago
13

How would i do this? so confused!

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
6 0
Supplementary angles add to 180 degrees.

x+8x=180
9x=180
x=20

Find the supplement of an angle of 20 degrees
180-20=160

Final answer: 160 degrees and 20 degrees respectively
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Write the set of in roster form if M is the set of integers that are greater that -1 and less than 4?
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If I could understand what you meant my answer is: Set M consisting of 0,1,2 and 3 whose power set has 16 individual sets :)
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A person's heart rate is 65 beats per minute at rest. It increases by 12 beats per minute for each of
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A cylinder has a height of 14 centimeters and a radius of 11 centimeters. What is its
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2 years ago
Explain what the equation 3x = 6 means without using the word equal.
Alexandra [31]

Step-by-step explanation:

1. 3 multiplied by x is the same value of 6

2. since 3x is on the left side we have to divide the equation by 3 on both sides which doesn't change the value of x, but it helps us get the value for x. so when you divide the equation by 3 the answer for x=6/2 which 2 divided by 6=3

Hope that helps :)

7 0
3 years ago
Im not sure how to find the surface area. 35 points
Serga [27]

Answer: 3060 ft^2

Step-by-step explanation:

We will calculate the surface area of the rectangular prism and the triangular prism separately and then subtract off the face that isn't on the surface.

For the rectangular prism:

SA= Ph + 2B

P = 36+36+10+10

P = 92

B = 36*10 = 360

SA = 92*20+2*360

SA = 1840+720

SA = 2560

We subtract off the face on the right of the rectangular prism because it isn't on the surface so we get 2560-200 = 2360

Now for the triangular prism:

SA= Ph + 2B

P = 15+20+25

P = 60

B = 15*20/2

B = 150

SA = 60*10+2*150

SA = 600+300

SA = 900

Again we subtract off the face on the left bescause it's not on the surface so we get 900-200 = 700

Therefore, the total surface area = 2360+700 = 3060 ft^2

4 0
2 years ago
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