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2 years ago

48:23 +4.10 3/4 Help pls....

Mathematics

1 answer:

Bond [772]2 years ago

4 0

Answer:

48:26.075

Step-by-step explanation:

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Jill has to go to the post office before she drops her 3 children off at the elementary school. She is going straight home after

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The sector COB is cut from the circle with center O. The ratio of the area of the sector removed from the whole circle to the ar

mafiozo [28]

Answer:

$Ratio = \frac{R^2 - r^2 }{ r^2}$

Step-by-step explanation:

Given

See attachment for circles

Required

Ratio of the outer sector to inner sector

The area of a sector is:

$Area = \frac{\theta}{360}\pi r^2$

For the inner circle

$r \to radius$

The sector of the inner circle has the following area

$A_1 = \frac{\theta}{360}\pi r^2$

For the whole circle

$R \to Radius$

The sector of the outer sector has the following area

$A_2 = \frac{\theta}{360}\pi (R^2 - r^2)$

So, the ratio of the outer sector to the inner sector is:

$Ratio = A_2 : A_1$

$Ratio = \frac{\theta}{360}\pi (R^2 - r^2) : \frac{\theta}{360}\pi r^2$

Cancel out common factor

$Ratio = R^2 - r^2 : r^2$

Express as fraction

$Ratio = \frac{R^2 - r^2 }{ r^2}$

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2 years ago

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Crazy boy [7]

Answer:

9 feet

Step-by-step explanation:

3X3=9 feet therefore 3 yards is equal to 9 feet

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2 years ago

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Step-by-step explanation:

The total number of people who did the survey is 12. The number of people who read 0-2 books is 2, and the number of people who read 3-5 books is 3. Everything else is over 6. So 2+3 is 5.

Therefore, D 5/12 is the answer

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