Answer:
2
Step-by-step explanation:
this will help i think this will be the answer i am not sure
Answer:
range=6,11,21,-3
Step-by-step explanation:
18 divided by (-9) equals -2.
Your answer is gonna be 578
Answer:
36
Step-by-step explanation:
The maximum height is the y-coordinate of the vertex
given a quadratic in standard form : ax² + bx + c : a ≠ 0
then the x-coordinate of the vertex is
= - 
y = - x² + 20x - 64 is in standard form
with a = - 1, b = 20 and c = - 64, hence
= -
= 10
substitute x = 10 into the equation for y
y = - (10)² + 20(10) - 64 = 36 ← max height