To the nearest hundredth, what is the circumference of a circle with a radius
of 5 units?
a. 27.63 units
b. 15.70 units
c. 78.54 units
d. 31.42 units

D. 31.42

Step-by-step explanation:

you can look up a calculator and it gives you the answer!

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