Question

please help!

Answer 1

i got 6

Answer 2

How did you get 6?

Answer 3

Substitute 25 for h and use the quadratic equation.

Answer 4

25=7+35t-16t^2
-7 -7
18=35t-16t^2

Answer 5

square root of 18=35t-square root of 16t?
4.24=35t-16t
4.24=19t
-14.76=t

Answer 6

and rounded to the nearest hundredth is -14.8?

Answer 7

You're doing great up until you reach 18=35t-16t^2

So subtract 18 from both sides to get

18=35t-16t^2

0=35t-16t^2 - 18

Then rearrange terms to get

-16t^2 + 35t - 18 = 0

Then use the quadratic formula to solve for t

Answer 8

whats the quadratic formula?

Answer 9

oh never mind haha

Answer 10

can i add -16^2+35t?

Answer 11

no, -16t^2 and 35t are not like terms