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Sagot :

Answer:

b. maximum height: 5.6 ft

c. 0.3 sec to reach its maximum height

Step-by-step explanation:

y = -16x² + 10x + 4   ...(1)

d/dx: -32x + 10 = 0

x = 5/16 ≈ 0.3   ... plug in (1)

y = -16*(0.3)² + 10*0.3 + 4 = 5.56 ≈ 5.6

View image Lynnkc2000
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