The diameter of a sphere is 42 cm . find the surface area to the nearest tenth.
1 answer:
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Answer:
The answer is option B, x = 4.2
Set up a proportion:
y = 35 when x = 7
y = ? when x = 10
To get x from 7 to 10, you have to multiply by . Therefore, you do the same to 35, and you get:
And your answer is 50 :)