A ball is thrown in the air from the top of a building. Its height, in meters above ground, as a function of time, in seconds, is given by . h(t)=-16t^2+56t+30 1. How high is the building? Explain how you know this.
2.How many seconds does it take to reach maximum height?
3What is the maximum height?

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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answer: (x+2) (x+3) are the binomials for your question : )