5. your friend tosses a ball into the air. the equation h = -5ť + 30t +10 models the height,
h, of the ball t seconds after it was thrown.
241-9) (10) -301 /25.4
a. how long was the ball in the air?

6.3s.

Explanation:

The height h is given by:

Setting the height h = 0 and using the quadratic formula to solve for t:

t₁ is physicly meaningless.

would be false hope this out

hi there!

out of the two, (b) precision would be more reasonable.   however, both a and b could be pretty reasonable.

-awesomerepublic   : )