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brunsonni
 one year ago
David kicks a soccer ball off the ground and in the air, with an initial velocity of 35 feet per second. Using the formula
H(t)=16t^2+vt+s, what is the maximum height the soccer ball reaches?
A. 17.9 feet
B. 18.2 feet
C. 18.7 feet
D. 19.1 feet
Please help, I have more than one question like this and it's a module test, so I can't get it wrong. I don't understand how to do this at all.
brunsonni
 one year ago
David kicks a soccer ball off the ground and in the air, with an initial velocity of 35 feet per second. Using the formula H(t)=16t^2+vt+s, what is the maximum height the soccer ball reaches? A. 17.9 feet B. 18.2 feet C. 18.7 feet D. 19.1 feet Please help, I have more than one question like this and it's a module test, so I can't get it wrong. I don't understand how to do this at all.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0v is supposed to be the initial speed of 35 and s is the initial height which is 0, so the equation is \[h(t)=16t^2+35t\], but that won't work with your options.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2at height 0 16t^2  35t = 0  we can convert this to vertex form and find maximum height

brunsonni
 one year ago
Best ResponseYou've already chosen the best response.0@peachpi I still don't understand what I would do after getting that equation, because the one I had was the exact same but I had + s on the end. But what would I do next after getting h(t)=16t^2+35t?

brunsonni
 one year ago
Best ResponseYou've already chosen the best response.0@welshfella would I do 16t^2=0 and 35t=0 now or is that completely wrong

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Hi @brunsonnie use this, this might help https://mathway.com/

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You could do t = b/(2a) to find the time of the max height. t = 35/(2*16) Then plug that in for the height

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2take out 16 16[t^2 + 2.1875] = 16[(x  1.09375)^2  1.1964] maxm height = 16 * 1.1964 = 19.14

welshfella
 one year ago
Best ResponseYou've already chosen the best response.2the 1.1964 comes fro 1.09375^2
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