At the start of a basketball game, the referee tosses a ball into the air for the jump ball. The equation that models the height of the ball is h(t) = -16t2 + 30t + 8. During what time interval is the height of the ball above 10 feet? (Round your answer to the nearest tenth of a second.)

Question

anonymous · Answer

well i would set the h of t to 10 and move the 10 over, factor, set both terms to 0, then discount the false statment

amistre64 · Answer

subtract 10 from the equation and find the zeros

amistre64 · Answer

http://www.wolframalpha.com/input/?i=-16t2+%2B+30t+%2B+8-10

anonymous · Answer

what is the answer exactly????????