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Eddi Din [679]
3 years ago
15

Help Please!

Mathematics
1 answer:
Debora [2.8K]3 years ago
7 0

Answer:

1) D

2) False

Step-by-step explanation:

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The width of a rectangular swimming pool is 12 meters less than the length, and the perimeter is 72 meters. Find its dimensions
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Answer:

The dimensions are 24 and 12 meters.

Step-by-step explanation:

W + L + W + L = 72   perimeter

(L-12) + L + (L-12) + L = 72

4L - 24 = 72

4L = 72 + 24 = 96  ====>  L = 96%2F4 = 24.

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Can some one help with the following please…???
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Answer:

5. 8

6. 18

Step-by-step explanation:

5.

a(a^2 + a - 1) + 7 =

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6.

2ab(a + b) - 3ab(a - b) =

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= -a^2b + 5ab^2

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= -(1)^2(2) + 5(1)(2)^2

= -1(2) + 5(4)

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6 more than 5 times a number (x) is at least twenty–one
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5x + 6 ≥ 21
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Uma is paid $12.25 for each chair she decorates. Last week she
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$514.50

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7+4+2+8=21

$12.25x21=$514.50

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