Answer
a) 3.8 times
b) 2.9 times
c) The owner could determine if more copies of that film are needed for the movie store.
Work Step by Step
a)
$F(x) = .6*\sqrt {49-x^2}$
$x=3$
$F(x) = .6*\sqrt {49-x^2}$
$F(3) = .6*\sqrt {49-3^2}$
$F(3) = .6*\sqrt {40}$
$F(3)= .6*6.324$
$F(3)=3.79$
b)
$F(x) = .6*\sqrt {49-x^2}$
$x=5$
$F(x) = .6*\sqrt {49-x^2}$
$F(5) = .6*\sqrt {49-5^2}$
$F(5)=.6*\sqrt {49-25}$
$F(5)=.6*\sqrt {24}$
$F(5) = .6*4.8989$
$F(5) = 2.939$
