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Maurinko [17]
3 years ago
7

A circle has a radius r which is a positive integer. If the circumference of the circle divided by the area of the circle is a p

rime number, what is the sum of all possible values for the radius of the circle?
Mathematics
1 answer:
ryzh [129]3 years ago
6 0

The possible value for the radius of the circle is 1 unit

<h3 /><h3>Area and Circumference of a circle </h3>

The formula for calculating the area of a circle is expressed as:

  • A = πr²

The formula for calculating the circumference is expressed as:

  • C = 2πr

where r is the radius of the given circle.

If the circumference of the circle divided by the area of the circle is a prime number, then;

\frac{2 \pi r}{\pi r^2}  = p\\\frac{2}{r} = prime

For the value to the prime and r to be an integer, the possible value for the radius of the circle is 1 unit

Learn more on circles here: brainly.com/question/402655

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What is the equation for the line?<br><br> will give BRAINLYEST AND 50PTNS
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Answer:

y=8x

Step-by-step explanation:

the slope is 8/1 you times x by the slope and the y intercept is 0 so you don't add anything to 8x

7 0
3 years ago
Read 2 more answers
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den301095 [7]
X+2y
Plug in the variables
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The solution for 7(5x+9)=12-(x+9) and simplified​
Charra [1.4K]

Answer:

x= -5/3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

7(5x+9)=12−(x+9)

7(5x+9)=12+−1(x+9)(Distribute the Negative Sign)

7(5x+9)=12+−1x+(−1)(9)

7(5x+9)=12+−x+−9

(7)(5x)+(7)(9)=12+−x+−9(Distribute)

35x+63=12+−x+−9

35x+63=(−x)+(12+−9)(Combine Like Terms)

35x+63=−x+3

35x+63=−x+3

Step 2: Add x to both sides.

35x+63+x=−x+3+x

36x+63=3

Step 3: Subtract 63 from both sides.

36x+63−63=3−63

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Step 4: Divide both sides by 36.

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4 0
3 years ago
What is the solution to this equation?
slavikrds [6]
Your answer is d.......
4 0
3 years ago
If I can walk 9673.6 meters in 5 hours. How far can I walk in 70 minutes. ( I need the work)
den301095 [7]

First, convert 5 hours into minutes:

5 hours 60 min

------------ * --------------- = 300 min

1 1 hr

Next, find the unit rate in m/min:

9673.6 m

--------------- = 32.24 m/min

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Now find the distance you can walk in 70 minutes at this rate:

32.24 m

------------- * 70 min = 2247 meters (answer)

1 min

You could walk 2247 meters (to the nearest meter) in 70 minutes.

6 0
3 years ago
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