Question

Select "Growth" or "Decay" to classify each function.

Function Growth Decay
y=200(0.5)^2t
y=1/2(2.5)^t/6
y=(0.65)^t/4

Which equation can be used to find the solution of (1/3)^d−5 = 81 ?

A. −d−5=4

B. d + 5 = 4

C. d−5=4

D. −d+5=4

Answer 1

@Vocaloid

Answer 2

@mikewwe13

so you determined earlier that (1/3)^(d-5) = (1/3)^-4

so d - 5 = -4

you can multiply both sides of the eqn by -1 to get

-d + 5 = 4 (answer D)