To find the scale factor divide the bigger measurement by the smaller one.
You did number 17. 42 / 3 = 14 so your scale factor is 14, option D.
For number 18, 48 / 6 = 8 so option A.
100/66655*61364=<span>92.0621108694%</span>
Answer:
127.17cm²
Step-by-step explanation:
Area of a semicircle: πr² ÷ 2
d = 18
r = 18/2 = 9
Area of a semicircle: 9²π ÷ 2 = 127.17cm²
After solving
we get 
Step-by-step explanation:
We need to solve

Solving

Subtract 2 from both sides:

Subtract 2p from both sides

Divide both sides by 2p

So, after solving
we get 
Keywords: Inequality
Learn more about inequality at:
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