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2 years ago

A baby monitor picks up signals within a 50 meter radius. What area of coverage does the baby monitor provide?

Mathematics

1 answer:

natima [27]2 years ago

4 0

Answer:

15.24 square meters

Step-by-step explanation:

Signal range of baby monitor is 50 meter radius.

The baby monitor will therefore cover an entire area of 50 meter radius.

Formula for finding the area of a circle is = π r 2 = π X r X r

Meaning: π = 3.142, r = radius of signal monitor

Therefore Area of circle = Square meters of coverage of baby monitor = 3.142 X 50 meters X 50 meters = 157.14 m2 (157.14 meters squared)

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pleeeeeeeeeeeease hellllllllp meeeeeee the circle has a center of 0.its raduis is 3 cm,and the central angle A measures 100.what

Vsevolod [243]

Answer:

2.5 pi

Step-by-step explanation:

Comment

If you were trying to get the area of a whole circle, you would use

Area = pi r^2

You have to modify the formula to show that just part of the circle has an area that you are interested in.

The new formula is

Area = (theta/360) pi r^2

Givens

r = 30 cm

theta = 100

Solution

Area = (100 / 360) * pi * r^2 Substitute the givens into this formula

Area = (5 / 18) * pi * 3^2 Expand

Area = (5 / 18) * pi * 9 Cancel 9 into 18

Area = 5/2 * pi

Area = 2.5 * pi

7 0

2 years ago

bob charges 6.25 per hour for washing cars, If he works 8 1/2 hours a day, about how much money would bob make in a 5 day week?

Komok [63]

Answer:

265.65

Step-by-step explanation:

6.25*8 =50

6.25/2=3.13

50+3.13=53.13

53.13*5=265.65

6 0

3 years ago

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HELP ASAP!!! WILL GIVE BRAINLEST!!!!

allochka39001 [22]

Answer:

This is Conplementary and adjacent

Step-by-step explanation: Complementary means they add up to 90 degrees and they are right next to each other

6 0

2 years ago

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Is it A B C D Will be marked as crown

Solnce55 [7]

The answer is B just took the test

3 0

3 years ago

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The ratio of the measures of the sides of a triangle is 3:4:5. Its perimeter is 48 inches. Find the scale factor as a decimal, a

Trava [24]

Given:

The ratio of the measures of the sides of a triangle is 3:4:5.

Its perimeter is 48 inches.

To find:

The scale factor as a decimal, and the measure of each side of the triangle.

Solution:

Let x be the scale factor. Then the measures of sides of the triangle are 3x, 4x and 5x.

The perimeter of the triangle is 48 inches. It means the sum of all sides of the triangle is 48 inches.

$3x+4x+5x=48$

$12x=48$

Divide both sides by 12.

$x=\dfrac{48}{12}$

$x=4$

Now, the measures of sides are:

$3x=3(4)$

$3x=12$

Similarly,

$4x=4(4)$

$4x=16$

And,

$5x=5(4)$

$5x=20$

Therefore, the scale factor is 4 and the measures of sides are 12, 16 and 20.

5 0

3 years ago

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