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If P = 23 (1r2n2), find n whe...

If P = 23 (1r2n2), find n when r = 13 and p = 1

A.

32

B.

13

C.

3

D.

23

Correct answer is D

If P = 23 (1r2n2), find n when r = 13 and p = 1

p = 2(1r2)3n2 when r = 13 and p = 1

1 = 23 (1(13)2)n2

n2 = 2(31)3×3

n2 = 2×23×3

= 49

n = 49

= 23