Marcus and three of his friends are guessing the radius of a circular pond. they read that the circumference is 157 ft, so they can use the equation 3.14*2r=157 to determine which of these guesses which form the replacement set {20,25,30,35} is correct? . what is the radius of the pond? a. 20ft b. 25ft c. 30ft d. 35ft

Option B. 25 ft

Step-by-step explanation:

we know that

The circumference of a circle is equal to

we have

assume

substitute in the formula

Solve for r

Divide by 2(3.14) both sides

hope it

step-by-step explanation:

x^(1/6) · x^(1/6) · x^(1/6)   ·x^(1/6) = x^(4/6)   since we add the exponents

4/6 can be simplified to 2/3

the simplified form is x^(2/3)