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Nikolay [14]
3 years ago
11

On top of a hill, a rocket is launched from a distance 80 feet above a lake. The rocket will fall into the lake after its engine

burns out. The rocket's height, h, in feet above the surface of the lake, is given by the equation, h = -16t 2 + 64t + 80, where t is time in seconds. The maximum height of the rocket is how many feet.
Mathematics
1 answer:
Savatey [412]3 years ago
4 0
H'(x)=-32t+64, the only zero of that is 2, and it goes from positive to negative, so the maximum height will be at time 2. Plug in 2 to the original equation and that gives you 144. The max height is 144 feet.
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Step-by-step explanation:

For this case the population represent all the professional athletes in the researcher city and we can assume that the sample size for tis population is N =982 and represent all the individuals of interest for the study and the parameter of interest is the proportion of athletes who believe that the enforcement of safety measures needs to be completely overhauled p.

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