x= 5 x z= 3 = 15 (4y - 2z) = 60 - -30 = 30 so its C
Step-by-step explanation:
Given that,
The function that shows the height of a baseball after t seconds is given by :
....(1)
Part (A).
When the baseball hits the ground,
H(t) = 0
So,

After 5 seconds the baseball will hit the ground.
Pat (B)
For maximum height, put dH/dt = 0
So,

Put t = 2.34 s in equation (1).

Hence, this is the required solution.
Answer:
18.75%
Step-by-step explanation:
720 - (209+376) =
720 - 585 = 135
135/720 = 0.1875 --> 18.75%