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Marianna [84]
3 years ago
7

What is the answer of -2h -7 and h is -1

Mathematics
2 answers:
Oksanka [162]3 years ago
8 0
<h2>FOLLOW ME FOR CLEARING YOUR NEXT DOUBT </h2>

Ronch [10]3 years ago
6 0
Your answer should be -5 sorry if I’m wrong
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If the length of each side of a cube is doubled, is the surface area doubled? Use an example to support your answer
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If a = 6l^2 is the total area of the surface of a cube with sides l length and A = 6 (2l)^2 is that area with 2l sides, then we take the ratio A/a = 6 (2l)^2/(6 l^2) = (2l)^2/l^2 = 4l^2/l^2 = 4. So that A = 4a. And that explicitly shows that the area A with 2l for sides is 4 X a, where a is the area when l is the side length. 

<span>Using ratios to compare values of the same thing is the smart way to solve this kind of problem, because many of the values, like the 6 in both, cancel out. In fact, because we found that A/a = (2l/l)^2 we say in general that the area of a cube varies with the square of the length of its side.


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!</span>
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What is 340 divided by 20?
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Line m is drawn so that it is perpendicular to two distinct planes, Q and R. What must be true about planes Q and R?
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B. are parallel.

<span>Line m is drawn so that it is perpendicular to two distinct planes, Q and R. Therefore, planes Q and R are parallel. 

Since it doesn't state that two planes intersect with each other, it is safe to assume that only line m is their connection. The planes are parallel with each other. </span>
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