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gtnhenbr [62]
2 years ago
14

Help with this question plz

Mathematics
1 answer:
nika2105 [10]2 years ago
7 0

Answer:

7 millimeters

Step-by-step explanation:

{7 }^{2}  = 49

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hey the question is, " The length of a rectangle is twice its width. The perimeter of the rectangle is 126 feet."​
Tema [17]

Answer:

42 = <em>l</em>

21 = <em>w</em>

Step-by-step explanation:

{l = 2<em>w</em>

{126 = 2<em>w</em> + 2<em>l</em>

126 = 2<em>w</em> + 2[2<em>w</em>]

126 = 2<em>w</em> + 4<em>w</em>

126 = 6<em>w</em>

21 = w [Plug this back into both equations to get the length of 42]; 42 = <em>l</em>

I am joyous to assist you anytime.

4 0
3 years ago
Please help!! i’m stuck
eduard

Answer:

17

Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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4x2 + 4x - 2y2 +3y, when x is equal to -2 and y is equal to 3?
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