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soldier1979 [14.2K]
3 years ago
14

If 8x + 6 = 3x + 21,

Mathematics
1 answer:
spin [16.1K]3 years ago
4 0

Answer:

x = 3

Step-by-step explanation:

First, subtract 3x from both sides. That leaves 5x+6=21.

Next, subtract 6 from both sides. That leaves 5x=15.

Lastly, divide by 5 and you get x=3

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Polygon ABCD, shown in the figure, is dilated by a scale factor of 8 with the origin as the center of dilation, resulting in the
saveliy_v [14]
C = (5,4)

D = (4,2)

Dilation with factor 8 => for the same x, y increase by a factor of 8

=> C' = (5, 8*4) = (5, 32)

=> D' = (4, 8*2) = (4, 16)

slope of C'D' = [32 - 16] / [5 -4 ] =16

You can also see that the slope of CD = [4 - 2] / [5 - 4] = 2

Then, the new slope is 8 times the old slope, this is it was multiplied by the same factor, 8. 

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7 0
3 years ago
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What is the first operation used to evaluate 13-2x3+4 divided by 4+4
lisabon 2012 [21]

Answer:

  multiplication

Step-by-step explanation:

The evaluation of ...

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starts with the multiplication, because there are no exponents or parentheses.

  13 -6 +4/4 +4

Next is the division:

  13 -6 +1 +4

Finally, the addition and subtraction:

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  8 +4

 12

_____

We have assumed your x is not a variable, but is intended to indicate multiplication. We have also assumed that your "divided by" implies no particular grouping, so that the numerator is the first preceding number and only the first following number is in the denominator.

6 0
3 years ago
A wooden block measures 2 inches by 2 inches by 3 inches. A wedge is cut off from each corner of the block by slicing at points
seraphim [82]

Answer:

Number of edges in the resulting solid = 12

Step-by-step explanation:

A wooden block measures 2 inches by 2 inches by 3 inches. A wedge is cut off from each corner of the block by slicing at points that are 1 inch from each corner.

We are supposed to find the number of edges that are in the resulting solid.

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yuradex [85]

Answer:

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Step-by-step explanation:

−6( −2 /3 +2x)

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6 0
3 years ago
I just need all the numbers on top in feet on the graph please
sattari [20]

Answer:

2.5, 5, 7.5

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Count.

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