The height of a ball in feet can be found by the quadratic function h(t)=−16t2+80t+5 where t is the time in seconds that the ball is in the air. Determine the time(s) that the ball is 69 feet high and select the correct answer below.

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

step-by-step explanation:

answer: 40.95

step-by-step explanation:

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answer: 0

step-by-step explanation: the positive, like 5, + its opposite, like -5 would be 0

5+(-5)=0, or 5-5=0