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SpyIntel [72]
3 years ago
5

What is the area of a circle whose radius is 4 ft?

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
6 0

Answer:

16π ft²

Step-by-step explanation:

The formula is [ A = πr² ]

A = π(4)²

A = 16π

Best of Luck!

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Y=-1/2x +7
yarga [219]

Answer:

B; (2,-4)

Step-by-step explanation:

The general equation of a straight line is;

y = mx + b

where m is the slope and b is the y-intercept

So from the question, when we look at the given equation, its slope is -1/2

mathematically, when two lines are perpendicular, the product of their slopes is -1

thus;

m1 * m2 = -1

m2 * -1/2 = -1

-m2 = -2

m2 = 2

The general equation form is;

y-y1 = m(x-x1)

where (x1,y1) = (4,0)

y-0 = 2(x-4)

y = 2x - 8

So, now we look at the point that will work for this equation

For the line that will work, if we substitute its x-value, we get the y-value

Let us take a look at option B

y = 2(2) -8 = 4-8 = -4

we can see that (2,-4) works

4 0
2 years ago
You have been asked to develop a composite measure of the quality of life on your campus.
Shkiper50 [21]

The social indicators that can be used to know the quality of life in campus are the number of hours spent in school, extra curricular activities, etc.

<h3>What are social indicators?</h3>

It should be noted that social indicators are used to monitor the social system.

The social indicators that can be used to know the quality of life in campus are the number of hours spent in school, extra curricular activities, etc. They're important to assess ones social life.

In conclusion, after necessary data has been collected m, a research can be made to know how the quality of life is affected by the data.

Learn more about indicators on:

brainly.com/question/485822

5 0
2 years ago
When two triangles are congruent 3 sides are?
steposvetlana [31]
This is a really vague question, but all i can assume from that is that all the sides of some triangle are congruent to their respective sides on the other triangle.
6 0
3 years ago
Y = 5x + 7<br> 2x + y = -5<br> Are the equations parallel,<br> perpendicular, or neither?
Nezavi [6.7K]

Lines are neither perpendicular nor parallel.

Step-by-step explanation:

Step 1:

In equation 1, Y = 5X + 7

In equation 2,  Y = -2X -5

Step 2:

Slope Intercept form Y =mX +c

Where m = Slope

Slope of line 1 = 5

Slope of line 2 = -2

m1  is not equal to m2. Hence it is not parallel.

m1  × m2 is not equal to -1. Hence they are not perpendicular.

3 0
3 years ago
Wrote an equation in slope intercept form of a line tbag passes through (5,-2) and is parallel to the graph of y=-3x-7
torisob [31]
If you have any questions about slope point formula...feel free to leave comments :)

7 0
3 years ago
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