Joy kicks the ball off the ground . after t seconds , it's height , h (in feet) is given by the formula h(t)= -16t^2 + 64t . what is the maximum height reached by the ball?

  64 ft

Step-by-step explanation:

The given equation can be factored as ...

  h(t) = -16t(t -4)

This is the equation of a parabola that opens downward and has zeros at t=0 and t=4. The vertex (maximum) occurs at the value of t halfway between these, at t=2. Filling in t=2, we can find the maximum height to be ...

  h(2) = -16(2)(2-4) = 64 . . . . feet

answer: it's d

step-by-step explanation:

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc