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3 years ago

49 more than the quotient of an unknown number and 12 is 53.

Mathematics

2 answers:

Westkost [7]3 years ago

7 0

49 + x/12 = 53
-49 -49

x/12 = 4

*12 * 12

x = 48

The value of the unknown number is 48

Talja [164]3 years ago

5 0

53-49=4
4 times 12=48. the unknown number is 48

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Where x is elapsed time in seconds.

We have to determine,

During what time interval will the tennis ball be at least 15 feet above the ground?

According to the question,

The height of a tennis ball tossed into the air is modeled by,

$\rm h(x) = 40x - 16x^2$

Where x is elapsed time in seconds.

Then,

When the tennis ball be at least 15 feet above the ground,

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For more details about Inequality refer to the link given below.

brainly.com/question/17177510

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