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qaws [65]
3 years ago
5

I just stuck. Someone explain.

Mathematics
1 answer:
KatRina [158]3 years ago
6 0

If there are parentheses you add the exponent on the outside to the exponents inside that belong to a variable.

For the three you would just cube it regularly, but for the x you would add the 3 to the 2 that is already on the x

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A=BH
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So the front and back's area is 30. Now you find the area of both sides. They are both rectangle so the formula is A=BH.
A=BH
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Now you find the area of the top and bottom. It is also a rectangle so you will use the same formula.
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This surface area of this rectangle prism is 78.
4 0
3 years ago
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