The velocity v of the flow of blood at a distance r from the central axis of an artery of radius r is given below, where k is the constant proportionality. v = k(r2 − r2) find the average rate of flow of blood along a radius of the artery. (use 0 and r as the limits of integration.)

10x

step-by-step explanation:

the greatest common factor 30 and 20 is 10

5 is a common factor of 30 and 20 but 10 is also a factor and 10 is greater than 5 so 5 will definitely not be apart of our answer

now the most amount of x's you factor our is just 1 factor of 1

so 10x the gcf of the terms in the polynomial