At the start of the basketball game, the referee tosses a ball for a jump ball. The equation that models the height of the ball is
h(t) = -16t2 + 24t + 5
During what time interval is the height of the ball above 9 feet? (Round your answer to the nearest tenth of a second.)
a) .2 seconds to 1.3 seconds
b) .5 seconds to 2.1 seconds
c) .4 seconds to 1.9 seconds
d) .6 seconds to 1.8 seconds

Question

At the start of the basketball game, the referee tosses a ball for a jump ball. The equation that models the height of the ball is 
h(t) = -16t2 + 24t + 5
During what time interval is the height of the ball above 9 feet? (Round your answer to the nearest tenth of a second.)
	a)	.2 seconds to 1.3 seconds
	b)	.5 seconds to 2.1 seconds
	c)	.4 seconds to 1.9 seconds
	d)	.6 seconds to 1.8 seconds

anonymous · Answer

Answered here: http://openstudy.com/groups/mathematics/updates/4e0203fd0b8bbe4f12e8742a

amistre64 · Answer

we can subtract 9 fromthe equaton and set it to 0 to solve

anonymous · Answer

Just change the numbers to match...

anonymous · Answer

can I just have the answer ?

anonymous · Answer

Not from me...

amistre64 · Answer

i was gonna ..... but your impatiance made me decide otherwise; none of us are getting paid for this .

anonymous · Answer

okay ... thanks anyway I guess.

anonymous · Answer

And even if I was getting paid, I wouldn't be getting paid to do the work for you.

amistre64 · Answer

mostly our goal is to teach you how to do them, so that you can be able to do then on your own :)

the answer I came up with is close to "a"

anonymous · Answer

thank you :)

amistre64 · Answer

yep :)