3 years ago

Plot 9/10 and 2 1/5 on the number line

Mathematics

1 answer:

MariettaO [177]3 years ago

4 0

Answer:

I dont know the context of the problem, but to make it easier to plot, you could change 2 1/5 to 2 2/10

hopefully this helps! :)

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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?

ELEN [110]

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

Circle A

$D=6\ cm$

The radius of circle A is

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

Circle B

$r=18\ cm$

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

$6^{2}=36$

therefore

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

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10 = 1/2x + 8
2 = 1/2x
X = 4

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Hope I helped!

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~ Zoe (Rank:'Genius')

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