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NARA [144]
3 years ago
5

Find the circumference of a circular window if the area is 100pi sq units

Mathematics
2 answers:
padilas [110]3 years ago
7 0
20pi sq units
.............
-BARSIC- [3]3 years ago
6 0

For this problem, using the area of the circle, we have to work backwards to find the radius to find the circumference

The area of the circle (A) = 100π units

A = 100π

The formula for area of a circle

A = πr²

Since we know what A is, lets plug it into the equation for area of a circle to solve for r

100π = πr²

Divide π from both sides to cancel them out

100 = r²

Take the square root of both sides to isolate r, the radius

r = 10

Now that we know what r is, let's plug it into the equation for the circumference of a circle

Circumference = 2πr

= 2π(10)

Multiply 2 and 10, because both are like terms

Circumference of the window = 20π

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A volcano in the ocean rises approximately 14,000 feet above sea level. Its base is approximately 20,000 feet below sea level. W
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Answer:

6,000 feet

Step-by-step explanation:

8 0
3 years ago
Which of these graphs represents the inequality x > 5?
nadezda [96]

Answer:

A is correct.

x>5 means all numbers greater than BUT not equal to 5.

The open circle means "not equal".

So,  A is correct.

Hope this helps!

7 0
3 years ago
Read 2 more answers
Please help asap! Tysm! I will give brainliest and thanks. :)
dsp73

Answer:

(-2,4)

Step-by-step explanation:

There are multiple answers for this, basically anything with an x-value of: -4, -2, 0, 2, or 4

So, you could have (2,4) , (-4,3) , (0,17), (2, -5), etc.

This is because, to be a function, each x-value can only have one corresponding y-value.  Thus, by giving the x-values (in this case, again, -4,-2,0,2, or 4) another y-value, the relation will not be a function.  

Easy answer: An x-value can only have one y-value

8 0
3 years ago
Talia finished 75% of her homework what fraction of the homework did she finish
notsponge [240]
She completed 3/4 of her homework

6 0
3 years ago
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A point Q on a segment with endpoints A (2, −1) and C (4, 2) partitions the segment in a 4:1 ratio. Find Q.
Annette [7]

The point Q on a line segment with end points(2,1) and (4,2) is Q(12/5, -2/5)

<h3>What is a line segment?</h3>

A line segment is a straight line that passes through two given points.

The end points of the line determine how long or short a given line segment would be.

Analysis:

point Q(x, y )

x = \frac{MX1 + NX2}{M+N}

y = \frac{MY1 + MY2}{M+N}

where M :N = 4:1

x1 = 2, x2 = 4, y1 = -1, y2 = 2

x = \frac{4(2) +1(4)}{4+1} = 12/5

y = \frac{4(-1) + 1(2)}{4+1} = -2/5

In conclusion, the point Q is (12/5, -2/5).

Learn more about line segment: brainly.com/question/2437195

#SPJ1

3 0
2 years ago
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