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Bezzdna [24]
2 years ago
6

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)

Pls, choose me as brainliest!

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11.6, if you need a decimal. it's in between 11 and 12

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3 years ago
What is the rule for the reflection? rx-axis(x, y) → (â€"x, y) ry-axis(x, y) → (â€"x, y) rx-axis(x, y) â†
malfutka [58]

The rule for the reflection is explained below. The correct option will be x-axis (x, y) = (x, -y).

In real life, we think of a reflection as a mirror image, like when we look at own reflection in the mirror.

This idea of reflection correlating with a mirror image is similar in math.

<h3>Reflection Over the X Axis </h3>

A reflection of a point, a line, or a figure in the X axis involved reflecting the image over the x axis to create a mirror image.

In this case, the x axis would be called the axis of reflection.

The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same.

When point P with coordinates (5,4) is reflecting across the X axis and mapped onto point P’, the coordinates of P’ are (5,-4).

Notice that the x-coordinate for both points did not change, but the value of the y-coordinate changed from 4 to -4.

<h3>Reflection Over the Y Axis </h3>

A reflection of a point, a line, or a figure in the Y axis involved reflecting the image over the Y axis to create a mirror image.

In this case, the Y axis would be called the axis of reflection.

The rule for reflecting over the Y axis is to negate the value of the x-coordinate of each point, but leave the y-value the same.

when point P with coordinates (5,4) is reflecting across the Y axis and mapped onto point P’, the coordinates of P’ are (-5,4).

Notice that the y-coordinate for both points did not change, but the value of the x-coordinate changed from 5 to -5.

Hence the correct option is r x-axis(x, y) = (x, -y).

For more details on reflection follow the link:

brainly.com/question/4998744

6 0
2 years ago
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Pie

Answer:

49

Step-by-step explanation:

m^2-14m+c

Take the -14

Divide by 2

-14/2 = -7

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(-7)^2 = 49

Add it to each side

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The formula for slope is \frac{y_{2} -y_{1} }{x_{2} -x_{1} }

In this case:

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so...

\frac{1 - (-3)}{-4 - 0}

\frac{4}{-4}

-1 <<<The slope

Hope this helped!

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7 0
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