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nikdorinn [45]
2 years ago
5

PLEASE HELP!!!

Mathematics
1 answer:
Alla [95]2 years ago
8 0

Answer:

area of window=1/2(πr²)=πr²/2=10²/2 π=50πinch²=50×3.14=157inch²

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Answer:

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Step-by-step explanation:

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Which of the following describes the correct process for solving the equation 2x − 4 = 20 and arrives at the correct solution?
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Answer:

a) Add 4 to both sides, and then divide by 2. The solution is x=12.

Step-by-step explanation:

Question:

Which of the following describes the correct process for solving the equation 2x − 4 = 20 and arrives at the correct solution?

a) Add 4 to both sides, and then divide by 2. The solution is x = 12.

b) Divide both sides by −4, and then subtract 2. The solution is x = −7.

c) Subtract 4 from both sides, and then divide by 2. The solution is x = −12.

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Solution:

Given equation:

2x-4=20

We need to determine the steps in order to solve for x.

Solving for x.

Step 1: Adding 4 both sides.

2x-4+4=20+4

2x=24

Step 2: Dividing both sides by 2.

\frac{2x}{2}=\frac{24}{2}

∴ x=12

Thus, we added 4 both sides and then divided both sides by 2 to get solution = 12

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Step-by-step explanation:

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