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Homework Example Joe Bradford January 9, 2017
Homework Example
Joe Bradford
January 9, 2017
HW
Answer
Answer
Answer
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Problem example
A problem.
18. Let A = f (r) be the area of a circle of radius r .
(a) Write the formula for f (r) .
(b) Which expression represents the area of a circle whose radius isincreased by 10%? Explain.
(i) 0.10 f (r) (ii) f (r + 0.10) (iii) f (0.10 r)
(iv) f (1.1 r) (v) f (r) + 0.10
(c) By what percent does the area increase if the radius isincreased by 10%?
Answer page
18. Let A = f (r) be the area of a circle of radius r .
(a) Write the formula for f (r) .
Answer page
(b) Which expression represents the area of a circle whose radius is
increased by 10%? Explain.
(i) 0.10 f (r) (ii) f (r + 0.10) (iii) f (0.10 r)
(iv) f (1.1 r) (v) f (r) + 0.10
Answer part b
Answer page
(c) By what percent does the area increase if the radius isincreased by 10%?
Answer part c
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