H(t)=−16t2+32t+1584 where (t) time is in seconds and height (h) is in feet.
1.) How long does it take for the object to hit the ground?
2)How long does it take for the object to reach the maximum height?
3.) What is the maximum height?
4.) How high is the cliff?

1) c 2143.6 cm

2) c 113.0 m

3) a 33.5 ft

4)   d 2 cm

5) c 20 mm

6) 180 in

7) d 120 ft

answer: procent 54 wynosi 33,33%

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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