Which is an equivalent form of the expression 1800(1.2)–t?

Is 1800(1/2)^t correct?

3 answers

1.2^-t = 1 / 1.2^t
That is clearly not the same as 1 / 2^t

recall that x^-a = 1/x^a
3 x 5 = 15 x 120 = 1800= equivalent
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