12. If y varies inversely as the cube of x and y = 8 when x = 1. What is y when x = 8?
A. 1/512
B. 1/64
C. 64
D. 512
A. 1/512
B. 1/64
C. 64
D. 512
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Answer:
A
Step-by-step explanation:
if y varies inversely as the cube of x and y=8 when x=1, what is y when x=8. cube of 8 is 512
(8X8x8)= 512
8x8 is 64x 8 is 512