Answer:
it is. 7126
Step-by-step explanation:
Mark me BRAINLISTESLD
Answer:
63
Step-by-step explanation:
A= HxB÷2
7x18÷2=63
Answer:

Step-by-step explanation:

Subtract 2.7 on both sides

Multiply by 9

divide by -2

Answer:
20 hours
Step-by-step explanation:
10*8*4=320 (volume of the pool)
320/16=20 hours
H(t) = -16(t^2) + 64t
roots:
0 = -16t^2 + 64t
0 = t^2 - 4t
0 = t(t-4)
t=0 and t =4
The symmetry axis is at the middle of the two roots: t = (0+4)/2
That time (t=2) is what it takes the object to reach the maximum height.
Answer: t = 2; it takes 2 seconds to reach the maximum height and 4 seconds to fall back to the ground