answer: p=19.2 ft
by the triangle midsegment theorem, you have:
then, the lengths of the sides of the triangle are:
add them to obtain the perimeter, then you obtain the following result:
p=8 ft+6.4 ft+ 4.8 ft
d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp
f(x) = x²- 10x + 25
we can factor this.
what 2 numbers multiply to 25 and add to -10
-5 *-5 = 25
-5+-5 = -10
f(x) =(x-5) (x-5)
using the zero product property, we know that it will cross the axis at x=5
at 5 seconds f(x) =0. this means the height is zero at 5 seconds
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