Step-by-step explanation:
A ball is launched straight up in the air from a height of 6 feet. The velocity as a function of time t is given by :
f(t) = -32 t+285
Height of the ball is :

C is constant. Here the ball is launched from a height of 6 feet. So,

At t = 2 s, 
At t = 9 s, 
Between 2 s and 9 s, the ball's height changed is : 1275 - 512 = 763 m.
Answer:
the 2nd one. I got it correct
Step-by-step explanation:
Answer:
A=120
B=20
C=20
Total area=160 cm2
This is really weird because the numbers dont look proportional to the shape but according to the data it should be correct :/