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Arte-miy333 [17]
3 years ago
10

Which of the following expressions are equivalent to 4x-6+8x+2

Mathematics
2 answers:
Len [333]3 years ago
8 0

Answer:

A) 12x - 4  and  B)  4(3x - 1)

Step-by-step explanation:

You have to combine like terms to solve this problem.   Any terms with the same variable are like terms, and all constants are like terms.

  4x - 6 + 8x  + 2          

   

          Here, 4x and 8x are like terms, so are -6 and 2, so we group them together

   4x + 8x - 6 + 2

Now simplify

     12x - 4             (4x + 8x = 12x, there are 4 'x's and you add 8 more 'x's,

                               you have -6 and add 2 to it).  This is answer A

Each of these terms has a multiple of 4, so we can factor that term out to get answer B

 4(3x - 1)             (12x/4 = 3x, and -4/4 = 1)  

exis [7]3 years ago
7 0

Answer:

A) 12x-4

and B) 4(3x-1)

Step-by-step explanation:

4x-6+8x+2

Rearrange the question

4x+8x-6+2

12x-4

B because when you simplify the equation 4(3x-1) = 12x-4

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The ratio of the height of two similar pyramids is 4:7. The volume of the smaller pyramid is 1,331cm, to the nearest whole numbe
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Answer:

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Step-by-step explanation:

step 1

Find the scale factor

we know that

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

Let

z----> the scale factor

In this problem, the ratio of the height is equal to the scale factor

z=\frac{4}{7}

step 2

Find the volume of the larger pyramid

we know that

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Let

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y----> volume of the larger pyramid

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we have

z=\frac{4}{7}

x=1,331\ cm^{3}

substitute

(\frac{4}{7})^{3}=\frac{1,331}{y}\\ \\(\frac{64}{343})=\frac{1,331}{y}\\ \\y=343*1,331/64\\ \\y=7,133\ cm^{3}

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<em>100% CORRECT ANSWERS </em>

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