Question

Y=-16x^2+68.5(0) please please solve! quadraic equation!

Answer 1

-16x^2+68.5 = 0 ?

Answer 2

im so confused with this problem...its supposed to how long the fountain will stay in the air but this is the equation it gave me..:/

Answer 3

rearrange
16x^2 = 68.5
take square roots of both sides
4x = +- sqrt68.5
x = sqrt68.5 / 4 or - sqrt68.5 / 4

if answer is a time then you can ignore the negative solution

Answer 4

okk thanks!

Answer 5

yw