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Sergio [31]
3 years ago
7

An arc of a circle is 3πm long, and it subtends an angle of 72° at the center of the circle. Find the radius of the circle.

Mathematics
1 answer:
Artist 52 [7]3 years ago
7 0

Answer:

7.5 m

Step-by-step explanation:

circumference = 360/72 × 3π = 15π

so the radius of the circle =

15π / 2π = 7.5 m

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X/3 +11=1/15 solve the following equation
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<span>here is what i get :
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LAST QUSTION OF THE NIGHT!!!!!<br> HELP SHOW WORK PLZ AND THANK YOU!!!
MissTica
Okay, so, to find out if an equation has one solution, an infinite number of solutions, or no solutions, we must first solve the equation:

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First, combine the like-terms on both sides of the equal sign:

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Now, we need to get the numbers with the variable 'x,' on the same side, by subtracting, in this case:

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(a). One solution
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(b) 25 - 4x = 15 - 3x + 10 - x

Okay, so again, we combine the like-terms, on the same side of the equal sign:

25 - 4x = 25 - 2x

Now, we get the 2 numbers with the variable 'x,' to the same side of the equal sign:

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Next, we do the opposite of addition, and, subtract 25 on each side:

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Finally, because we can't divide 0 by -2, this tells us that this has an infinite number of solutions.

(b) An infinite number of solutions.

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I hope this helps!
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