The correct answer is B) 9 m.
The measure of the sector of circle R is 32π/9 m. The measure of the central angle is 80°. This means that the sector is 80/360 = 2/9 of the circle. The area of a circle is given by A=πr², so the area of the sector is A=2/9πr². To verify this, 2/9π(4²) = 2/9π(16) = 32π/9.
Using this same formula for circle S, we will work backward to find the radius:
18π = 2/9πr²
Multiply both sides by 9:
18*9π = 2πr²
162π = 2πr²
Divide both sides by 2π:
162π/2π = 2πr²/2π
81 = r²
Take the square root of both sides:
√81 = √r²
9 = r
Answer:
8
Step-by-step explanation:
13
Divide 52 by 4 which gives you 13. 13 x 4 = 52
<h3>The equivalent expression is 6 + 6x</h3>
<em><u>Solution:</u></em>
<em><u>Given expression is:</u></em>
9 - (3 - 6x)
We have to find the equivalent expression
Use the distributive property,
a(b + c) = ab + bc
Therefore, from given expression,

Combine the constants, 9 - 3 = 6

Thus the equivalent expression is 6 + 6x
Answer:
The answer is 144
Step-by-step explanation:

