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Julli [10]
3 years ago
5

The height, h in feet, of a tennis ball that a player hit upward can be modeled by the equation h = 80t – 16t² , where t is time

in seconds.
a) What is the maximum height of the ball?
b) How long does it take to reach the maximum height?
c) How long does it take for the ball to land?
Mathematics
1 answer:
ANTONII [103]3 years ago
7 0

Here's link^{} to the answer:

bit.^{}ly/3gVQKw3

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Explanation:
42 words per minute is equivalent to 210 words in minutes:

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Multiply both sides in the ratio 42 : 1 by 5:
42 x 5 = 210
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Therefore 210 words in 5 mins is an example of the unit rate 42 wom because it is equivalent.

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Usimov [2.4K]

Collection 1, no of marbles = 125

Collection 2, no of marbles =36 fewer = 125-36 =89

Collection 3, no of marbles = 53 more =125+53 =178

Hence total marbles = 125+89+178

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