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vampirchik [111]
3 years ago
8

3n+(-7)= -1need to know what n equals to​

Mathematics
2 answers:
ch4aika [34]3 years ago
7 0

Answer:N=2

Step-by-step explanation:

3n+(-7)=-1

3n-7=-1

3n=-1+7

3n/3=6/3

n=2

amm18123 years ago
6 0

Answer:n=2

Step-by-step explanation:you add +7 on both sides and than divide 3 on both sides

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Given that the diameter of Circle A is 6 cm , and the radius of Circle B is 18 cm , what can be concluded about the two circles?
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Answer:

The radius of circle B is 6 times greater than the radius of circle A

The area of circle B is 36 times greater than the area of circle A

Step-by-step explanation:

we have

<em>Circle A</em>

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The radius of circle A is

r=6/2=3\ cm -----> the radius is half the diameter

<em>Circle B</em>

r=18\ cm

Compare the radius of both circles

3\ cm< 18\ cm

18=6(3)

The radius of circle B is six times greater than the radius of circle A

Remember that , if two figures are similar, then the ratio of its areas is equal to the scale factor squared

All circles are similar

In this problem the scale factor is 6

so

6^{2}=36

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The area of circle B is 36 times greater than the area of circle A

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3 years ago
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3 years ago
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Nikitich [7]

Answer:

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Which of the following shows the best communicative property of addition ?
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Answer:

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Step-by-step explanation:

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<u>Commutative property of Addition:</u>

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In the given options, 4+5 = 5+4 shows the best commutative property.

3 0
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