How do you find the radius of circles?

1.The radius to circumference formula is: C = 2πr.

2.The formula for radius to area is: A = πr2.

3. If you need to go from radius to diameter, multiply radius times 2 : d = 2r.

Step-by-step explanation:

The radius of the circle is 3.5 feet. You can also use circumference and the radius equation.

Step-by-step explanation: i hope this helps! have a yummy cookie day!

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answer: need picture of problem

step-by-step explanation:

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.