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Andreyy89
3 years ago
10

If the length of a rectangle is x + 4 and the width of the rectangle is 2x + 9 what would the perimeter of the rectangle be? be

sure to simplify your answer.
Mathematics
1 answer:
ss7ja [257]3 years ago
5 0

Hello!

To find the perimeter of any rectangle, use the formula P = 2l + 2w.

In this formula, l is the length and w is the width. Given that the width is 2x + 9 and the length is x + 4, we can find the perimeter.

P = 2(x + 4) + 2(2x + 9)

P = 2x + 8 + 4x + 18

P = 6x + 26

Therefore, the perimeter of the rectangle is 6x + 26.

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If y = 5x – 4, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?
lidiya [134]

Answer:

B

Step-by-step explanation:

Substitute the x value into the right side of the function and if the value obtained is equal to the y value of the point then it is a solution.

(0, - 4) → y = 5(0) - 4 = 0 - 4 = -4 ← True

(2, 6) → y = 5(2) - 4 = 10 - 4 = 6 ← True

(4, 20) → 5(4) - 4 = 20 - 4 = 16 ← False

(4, 16) → 5(4) - 4 = 20 - 4 = 16 ← True

(0, - 4), (2, 6), (4, 16) ← possible inputs and outputs

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3 years ago
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3 0
2 years ago
the variable Z is invery proportional to X. when X is 3, Z has the value 6. what is the value of Z when X = 12
MrMuchimi

"inversely proportional," please.

z = k/x

When x is 3, z = 6; find k: 6 = k/3, or k = 18.

Then z = 18/x. When x = 12, z = 18/12 = 2/3 (answer)

6 0
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WARRIOR [948]
#2 because it’s a Pythagorean theorem triple
Sorry I only know that one
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