BIG IDEAS MATH
2015 > Chapter 9 > Quiz 9
A ball is kicked 5 feet above the ground with an initial vertical velocity of 50 feet per second.
The function h (t) = -16t2 + 50t + 5 represents the height h (in feet) of the ball after t
seconds. Using a graph, after how many seconds is the ball 32 feet above the ground? Round
your answers to the nearest tenth.
The ball is 32 feet above the ground after
second(s) and
second(s).
9

should i answer this question?

explanation:

where is the section with the question?

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69

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