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College AlgebraChapter 1/Section 3[ATTACH=full]3843[/ATTACH]Q.45Let r = number of revolutionsC = r•pi•dC = 4•pi•16C = 64•piQ. 46Let r = number of revolutionsC = r•pi•d20 = r•pi•420/4•pi = r5/pi = r
College Algebra
Chapter 1/Section 3
[ATTACH=full]3843[/ATTACH]
Q.45
Let r = number of revolutions
C = r•pi•d
C = 4•pi•16
C = 64•pi
Q. 46
20 = r•pi•4
20/4•pi = r
5/pi = r
