The height of a football after the ball has been kicked can be approximated by h(t) = −16t2 + 80t + 4,
where
h(t)
is the height, in feet, of the football t seconds after being kicked. Find the height (in feet) of the football 3 seconds after it is kicked.

yes

step-by-step explanation:

yes

answer: 486in^2

step-by-step explanation:

secant-secant formula:

(whole secant) x (external part) =           (whole secant) x (external part)

(8+y-2) *8=                                           (y+4+6) *6

(y+6)*8 = (y+10) *6

distribute

8y+48 = 6y +60

subtract 6y from each side

2y +48 = 60

subtract 48 from each side

2y = 12

divide by 2

y = 6

sv =     (y+4+6)

sv   = 6+4+6

sv = 16

d. 3√⋅2√

step-by-step explanation:

this expression will simplify to a irrational, because this is part of a whole expressed as a fraction, decimal or a percentage.