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michneidredep7427
26.01.2021 •
Mathematics
pls pls help thx so much to the ppl who take there time and help ill mark you brainliest, send a thank you, and mark star5 :)
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Ответ:
b : 16/20
c : 1/5
omg i used to love doing this ,
hope it helps !!
Ответ:
Maximum height, H(t) = 9.8 feet
Step-by-step explanation:
It is given that, Rebekah kicks a soccer ball off the ground and in the air.
Initial velocity of the ball, v = 25 feet per second
The height as a function of time is given by :
s = 0
For maximum height,![\dfrac{dH(t)}{dt}=0](/tpl/images/0090/0691/a023a.png)
-32 t + 25 = 0
t = 0.78 s
The maximum height of the soccer ball can be calculated using the value of t in equation (1) as :
H(t) = 9.76 feet
or
H(t) = 9.8 feet
So, the maximum height the soccer ball reaches is 9.8 feet. Hence, the correct option is (b).