it takes 5 seconds to reach a height of 40 ft. and It takes 2.5 seconds to reach maximum height.
Let h(t) represent the height of the ball at time t.
Given that the height is given by:
h(t) = -16t² + 80t + 40
1) For the ball to reach a height 0f 40 ft, h(t) = 40, hence:
40 = -16t² + 80t + 40
16t² - 80t = 0
t(t - 5) = 0
t = 0 or t = 5
Hence it takes 5 seconds to reach a height of 40 ft.
2) The maximum height is at h'(t) = 0,
h'(t) = -32t + 80
-32t + 80 = 0
32t = 80
t = 2.5
It takes 2.5 seconds to reach maximum height.
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Answer:
L= 86 yards
Step-by-step explanation:
Perimeter = 2length + 2width
So,
302= 65(2) + 2(L)
302= 130+2L
-130
172=2L
Length= 86
Answer:
The greatest common factor of 23 and 50 is 1
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
