The second one is your answer
Given that height, h(t) of a tennis ball is modeled by the equation h(t)=<span>-16t^2 + 45t + 7, the time taken for the ball to reach maximum height will found as follows:
at maximum height:
h'(t)=0
but from the equation:
h'(t)=-32t+45=0
solving for t we get
t=45/32
t=1.40625~1.4 seconds
Thus the time taken to reach maximum height is 1.4 seconds
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Answer:
12 is missing
Step-by-step explanation:
Answer:
80
Step-by-step explanation:
because if you want to find a common denimeter we have mulitly the deometer to find the answer
sorry if it is wrong
The answer is x=5 and y=-2
