Question

Simplify: 10log(3.5)
A satellite has a power output, P watts, given by P (t) = 502 250 , where t is time in days. How long will it take the power
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Answer #1

(a) 10^(log(3.5)) = 3.5    (Answer)

(b) p(t) = 50*e^(-t/250)

for p = 20

50*e^(-t/250) = 20

-t/250 = ln(2/5)

t = 250*ln(5/2) = 229 days . (Answer)

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