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3 years ago

Find the quotient. Write the answer in simplest form.

Mathematics

1 answer:

mariarad [96]3 years ago

8 0

Answer:

A) 28/39

Step-by-step explanation:

$\frac{4}{13} divided by \frac{3}{7}=\frac{4}{13}*\frac{7}{3}\\=\frac{28}{39}\\Keep the first number. Flip the second number. Change the operation- division into multiplication.$

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In a parallelogram a diagonal of the length 20 cm is perpendicular to one of the sides. Find the longer side of parallelogram if

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2 years ago

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What is the value of z if z/4 = 12

Digiron [165]

Answer:

z = 48 :)

Step-by-step explanation:

z ÷ 4 = 12

So, all you need to do is multiply 12 by four, to get z- 48

hope this helped!

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Evaluate 6• 10^-2 as a decimal

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Select the correct answer. Simplify the expression to a single numerical value.

KIM [24]

432

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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