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College Algebra
Chapter 1/Section 3
Q.45
Let r = number of revolutions
C = r•pi•d
C = 4•pi•16
C = 64•pi
Q. 46
Let r = number of revolutions
C = r•pi•d
20 = r•pi•4
20/4•pi = r
5/pi = r
Chapter 1/Section 3
Q.45
Let r = number of revolutions
C = r•pi•d
C = 4•pi•16
C = 64•pi
Q. 46
Let r = number of revolutions
C = r•pi•d
20 = r•pi•4
20/4•pi = r
5/pi = r