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In-s [12.5K]
3 years ago
6

Help me pleaseeee!!!!!!

Mathematics
1 answer:
lilavasa [31]3 years ago
7 0
The formula for finding the perimeter of any rectangle is 2(width + length).
a) width= x ; length= x+7. Plug them into the formula 2( x+x+7). Combine like terms inside the parenthesis: 2(2x+7). Distributive property: 4x+14 is your answer.

b) Width=y ; length: 2y-1. Plug them into the formula: 2(y+2y-1). Combine like terms inside the parenthesis: 2(3y-1). Distributive property: 6y-2, is your answer.

I'm only doing the first two, the rest you should be able to do them. 
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sukhopar [10]

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Use a net to find the total surface of the prism.
elixir [45]

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6682.5cm

Step-by-step explanation:

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