Question 2 of 10 The function fo gives the area of a circle with radius r It can be written in equation form as fo = 3.147. What is 65)? O A 31.40 OB. 28.14 OC. 246.49 D. 78.50​

f-1(x)= cube root of 19x squared/x

step-by-step explanation:

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

question 1: step-by-step explanation:

1/4 of 84 = 84÷4= 21