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
<span>x^2-10x
Factor out an x:
x(x-10)</span>
S20+17v=-6+15v
try to get the placeholder on only one side
subtract 15v from both sides
20+2v=-6
subtract 20 from both sides
2v=-26
divide both sides by 2
v=-13
The square root of 360 is 18.97
Answer:
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Step-by-step explanation:
but the anser is 4