Answer:
B
Step-by-step explanation:
B gives you 8/12, which can be simplified down to 2/3.
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Answer:
D
Step-by-step explanation:
Solve x = f(y) for y.
x = ∛(y/9) -4
x +4 = ∛(y/9) . . . . . add 4
(x +4)³ = y/9 .. . . . . cube
9(x +4)³ = y . . . . . . multiply by 9
The inverse function is ...
f⁻¹(x) = 9(x +4)³ . . . . . matches the last choice
Step-by-step explanation:
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60%, 900/1500 would be .6 and in terms of percent would be 60.