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2 years ago

Find the area of the shaded regions. Give your answer as a completely simplified

Mathematics

1 answer:

Pavel [41]2 years ago

5 0

The area of the shaded region is 40π/3 square cm if the radius of the small circle r is 3 cm and the radius of the large circle R is 7 cm.

<h3>What is a circle?</h3>

It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)

We have a circle in which the shaded region is shown.

The radius of the small circle r = 3 cm

The radius of the large circle R = 3+4 = 7 cm

The area of the shaded region:

= area of the large circle sector - an area of the small circle sector

= (120/360)[π7²] - (120/360)[π3²]

= 49π/3 - 3π

= 40π/3 square cm or

= 13.34π square cm

Thus, the area of the shaded region is 40π/3 square cm if the radius of the small circle r is 3 cm and the radius of the large circle R is 7 cm.

Learn more about circle here:

brainly.com/question/11833983

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i think x=8

Step-by-step explanation:

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3 years ago

Caroline's hair is

Ipatiy [6.2K]

The inequality can be used to determine how many months will it take for Caroline's hair to be at least as long as Trinity's hair is (1/5)x + 7 ≥ (1/10)x + 10

<h3>What is an equation? </h3>

An equation is an expression that shows the relationship between two or more numbers and variables. An independent variable is a variable that does not depend on other variables while a dependent variable is a variable that depends on other variables.

Let x represent the number of months.

For Caroline's hair:

Length = (1/5)x + 7

For Trinity's hair:

Length = (1/10)x + 10

For Caroline's hair to be at least as long as Trinity's hair, hence:

(1/5)x + 7 ≥ (1/10)x + 10

The inequality can be used to determine how many months will it take for Caroline's hair to be at least as long as Trinity's hair is (1/5)x + 7 ≥ (1/10)x + 10

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8 0

2 years ago

If your total is $19.48 and the tax is $9.25 what is the total amount

7nadin3 [17]

Answer:28.73

Step-by-step explanation:

4 0

3 years ago

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Please help with this question

vovikov84 [41]

Answer:

384π cm³

Step-by-step explanation:

Formula for the volume of a cone is $\displaystyle \large{\frac{1}{3}\pi r^2 h}$ where:—

r is radius
h is height

Our radius is given in an attachment which is 12 cm and height is 8 cm. Substitute these values in the formula:—

$\displaystyle \large{V = \frac{1}{3}\pi (12)^2 \cdot 8}\\\displaystyle \large{V = \frac{1}{3}\pi \cdot 144 \cdot 8}\\\displaystyle \large{V = 48 \pi \cdot 8}\\\displaystyle \large{V = 384 \pi}$

__________________________________________________________

<u>Summary</u>

<u>Volume (Cone)</u>

$\displaystyle \large{V = \frac{1}{3}\pi r^2 h}$ where:—

h is height or perpendicular.

r is radius.

<u>Value of Pi (Commonly Used)</u>

$\displaystyle \large{\pi \approx 3.14}$

__________________________________________________________

If you have any questions regarding this problem or need clarification for my answer or explanation, do not hesitate to ask in comment! Good luck on your assignment and have a great day!

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2 years ago

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Answer:

7(3+7)

Step-by-step explanation:

21+49=70

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3 years ago

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