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3 years ago

Complete the formula to find the tax withheld.

Mathematics

1 answer:

Gelneren [198K]3 years ago

8 0

Answer:

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Step-by-step explanation:

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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

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

6 0

3 years ago

How do you find the perimeter of the window to the nearest tenth. Half the widows radius is 20.

muminat

Answer:

Step-by-step explanation:

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3 years ago

Find 2/3 of 3/4 of 24

Aleksandr-060686 [28]

Answer:

the answer is 12 which is a whole number

Step-by-step explanation:

i just multiplied them into my phone calculator and got the answer then checked my work. i really hope this helps and don't mind to BRAINLIEST PLZ

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3 years ago

F(x) = x + 7<br> and<br> g(x) = x2<br> What is g( f(-9))

Tanya [424]

Answer:

Step-by-step explanation:

6 0

3 years ago

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Hannah has 3 3/4 cups of spinach. Each salad requires 1 1/2 cups of spinach. How many whole salads can she make?

Nookie1986 [14]

2 because 1 and 1 half x 2 is 3 and that is two whole.

3/4 is hald of a whole so it cant count

6 0

3 years ago

Read 2 more answers