2 years ago

Seven times the sum of a number and 22 is at least 15

Mathematics

1 answer:

Luba_88 [7]2 years ago

3 0

It is 7 = 7 that is rite

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Given ƒ(x) = 3x + 9, find x when ƒ(x) = 21.

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2 years ago

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Taya2010 [7]

In order to figure out what the answer is you would have to divide the number of feet it fell by the time. If you do 35.75 divided by 3.25 it would be 11.
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Salsk061 [2.6K]

Answer:

$area = 0.5 \times height \times width \\ = 0.5 \times (x + 2) \times (x +2 - 7) = 4 \\ 4 \div 0.5 = (x + 2)(x - 5) = 8 \\ {x}^{2} - 3x - 10 = 8 \\ {x}^{2} - 3x - 18 = 0 \\ (x - 6)(x + 3) = 0 \\ x = - 3 \\ x = 6$