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In-s [12.5K]
3 years ago
10

A circle is centered at the point (-3, 2) and passes through the point (1, 5) what is the radius of the circle

Mathematics
1 answer:
fomenos3 years ago
6 0

Answer:

5 units

Step-by-step explanation:

Center of the circle = (-3, 2)

Point on the circle = (1, 5)

Radius of the circle will be equal to the distance between the points (-3, 2) & (1, 5)

\therefore \: radius \: of \: the \: circle \\  =  \sqrt{ {( - 3 - 1)}^{2} +  {(2 - 5)}^{2}  }  \\  =  \sqrt{ {( - 4)}^{2}  +  {( - 3)}^{2} }  \\  =  \sqrt{16 + 9}  \\  =  \sqrt{25}  \\  \therefore \: radius \: of \: the \: circle  = 5 \: units

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7(n + 1) = 7n + 7

5n + 7 = 7n + 7 - 2n

Combine like terms

5n + 7 = 7n - 2n + 7

5n + 7 = 5n + 7

If you want to solve for n, subtract 7 from both sides

5n + 7 (-7) = 5n + 7 (-7)

5n = 5n

then divide 5 from both sides

5n/5 = 5n/5

n = n

Effectively, this equation is <em>unsolvable</em>

hope this helps
3 0
3 years ago
Read 2 more answers
A line passes through the point (-4, -8) and has a slope of 5/2 write an equation in slope intercept form for this line
Tju [1.3M]

Answer:

y = 5x/2 + 2

Step-by-step explanation:

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y = mx + b

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So we can use the slope and this y intercept we found to plug back into the equation:

y = mx + b

y = 5x/2 + 2

4 0
3 years ago
Find the volume of the sphere with a radius, r, of 3/2 feet and π ≈ 3.14.
nalin [4]

Answer:

V= 14.13

Step-by-step explanation:

Information needed:

V= 4/3\pir^3

\pi= 3.14

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V= 4/3\pir^3

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V= 4/3(3.14)(27/8)

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3 years ago
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which agency is not an example of the expansion of the power of the federal government during World War 1
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Answer:

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Step-by-step explanation:

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3 years ago
What is the answer to 6/5= 2/5n and tell me how you got the answer
alina1380 [7]
\frac{6}{5} = \frac{2}{5} n

First, simplify \frac{2}{5} n to \frac{2n}{5} / Your problem should look like: \frac{6}{5} = \frac{2n}{5} 
Second, multiply both sides by 5. / Your problem should look like: 6 = 2n
Third, divide both sides by 2. / Your problem should look like: \frac{6}{2} = n
Fourth, simplify \frac{6}{2} to 3. / Your problem should look like: 3 = n
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Answer: n = 3

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3 years ago
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