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2 years ago

Help meh plz for brainlist

Mathematics

1 answer:

yanalaym [24]2 years ago

8 0

Answer:

Step-by-step explanation:

(pemdas) 3 3^2 9 x 3 = 27 - 13

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What's 20/30 times 24/30?

AURORKA [14]

It equals 8/15. You simplify the fractions, and then just multiply across the top and bottom.

8 0

2 years ago

Help asap

Mama L [17]

Answer:

216 $\pi$

Step-by-step explanation:

Given the figure.

And the perimeter in the ratio 4: 2: 1.

Perimeter of smallest circle = $8\pi$

To find:

Area of shaded region.

Solution:

To find the area, we need to have radius first.

And radius can be calculated by the given perimeter.

Formula for Perimeter is given as:

Perimeter = $2\pi r$

$8\pi = 2\pi r\\\Rightarrow r = 4\ cm$

Radius of smallest circle = 4 cm

Ratio of perimeter is equal to the ratio of the radii.

Radius of 2nd smallest circle by the given ratio = 8 cm

Radius of largest circle = 16 cm

Area of a circle is given the formula:

$A = \pi r^2$

Area of the smallest circle = $\pi 4^2 = 16\pi\ cm^2$

Area of the 2nd smallest circle = $\pi 8^2 = 64\pi\ cm^2$

Area of the largest circle = $\pi 16^2 = 256\pi\ cm^2$

Area of the shaded region = Area of largest circle + 2 $\times$ Area of 2nd smallest circle + 3 $\times$ Area of smallest circle - 2 $\times$ Area of smallest circle - 3 $\times$ Area of 2nd smallest circle

Area of the shaded region = Area of largest circle - Area of 2nd smallest circle + Area of smallest circle = $256\pi - 64\pi +16\pi = 216\pi$

6 0

1 year ago

1] A triangle with sides of 8, 15, and 16 is a right triangle.

Andreyy89

ANSWERS

1 B

2 24

3 B

4 A

5 B

6 D

7 0

2 years ago

Please help

igor_vitrenko [27]

Answer:

C. Robert can read of a page every minute.

Step-by-step explanation:

Unit rate is usually based off of a unit of time and what type of time, however, it is 1.

For example, the unit rate MPH. This means "Miles per 1 hour".

Or take another example, KPH, or "Kilometers per 1 hour".

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2 years ago

A class of 12 girls and 14 boys is going to choose 3 students to represent them in student government. Allie suggested that the

Westkost [7]

The body because everyone has an equal chance

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2 years ago

Read 2 more answers