#20 Precalculus questions

Mathematics
Tutor: None Selected Time limit: 1 Day

May 15th, 2015

d(t)=70sin(0.65t)+150

when

d(t)=100

100=70sin(0.65t)+150

-50/70=sin(0.65t)

0.65t=sin^-1(5/7)

t=-70.13 

but time cannot be negative

so it's never 100 miles from the airport


May 15th, 2015

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May 15th, 2015
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May 15th, 2015
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