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Oxana [17]
3 years ago
8

The two solids are similar and the ratio between the lengths of their edges is 2:7 what is the ratio of their surface areas?

Mathematics
1 answer:
vovangra [49]3 years ago
8 0

Answer:

The ratio of their surface areas is \frac{4}{49}

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is equal and this ratio is called the scale factor

In this problem the scale factor is equal to the ratio \frac{2}{7}

and

Remember that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

therefore

In this problem the ratio of their surface areas is (\frac{2}{7})^{2}=\frac{4}{49}

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3 years ago
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Answer:

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9514 1404 393

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4 0
3 years ago
Find the complete factorization of the expression. 48x + 56xy A) 8x(6 + 7y) B) 8x(7 + 6y) C) 8xy(6 + 7) D) 8xy(13)
mel-nik [20]
Hello there!

The expression:48x+ 56xy

We know we can't add them together since 56 is being multiplied by y. We aren't going to combine 48x and 56xy. They will remain separate terms. 

We know that "C" and "D" are not the answers. 

However, we can check the following expressions to see if they match the given expression.

8x(6+7y)= 8x*6= 48x  8x*7y= 56xy <=== "A" is correct

"A" is the correct answer. 

I hope this helps!
~kaikers


4 0
3 years ago
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