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September 20, 2014

September 20, 2014

Posted by **bill** on Sunday, March 7, 2010 at 10:14pm.

a. Determine a function for the height of the projectile t seconds after it’s released.

b. How long does it take the projectile to reach of height of 100 feet on its way up?

c. How long is the projectile in the air?

- math -
**Reiny**, Sunday, March 7, 2010 at 10:53pmheight(t) = -16t^2 + 860t + 7

b) solve 100 = -16t^2 + 860t + 7 and use the smaller of the two t values you find

c) set height(t) = 0 and solve

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