Justin threw a football to his friend, and the height of the football in meters above the ground after t seconds is modeled by f(t)=-4.9t²+30t+13. When did the football hit the ground? 58.92 sec

6.53 sec

3.06 sec

13 sec

Solved

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Ответ:

23jazzy

13.01.2021

Mathematics

Hello, User!

to find the volume of a cone you need to use this equation!

$V=\pi r^2\frac{h}{3}$

were r= radius and h=height

then we substitute the values into the equation!

$V=\pi (3)^2\frac{5}{3}\\$

$V=\pi(9)\frac{5}{3} \\V=28.274(1.66)\\V=46.93\\V=47$

Therefore your answer is about 47 in!

I hope I helped and I was super exited and honored to answer your question have a very nice day!

but if you dont do pi

you get..

$V=3^2\frac{5}{3} \\V=9(\frac{5}{3} \\V=9(1.66)\\V=14.94\pi$

$V=15\pi in^3$

so its B. 15(pie) in ^3

-Philaeagles14

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Justin threw a football to his friend, and the height of the football in meters above the ground after t seconds is modeled by f(t)=-4.9t²+30t+13. When did the football hit the ground? 58.92 sec 6.53 sec 3.06 sec 13 sec