What is the average rate of change of g(x)=\dfrac{2}{x+3}g(x)= x+3 2 g, left parenthesis, x, right parenthesis, equals, start fraction, 2, divided by, x, plus, 3, end fraction over the interval 1\le x \le31≤x≤31, is less than or equal to, x, is less than or equal to, 3?

Adielectric-filled parallel-plate capacitor has plate area a = 30.0 cm2 , plate separation d = 9.00 mm and dielectric constant k = 3.00. the capacitor is connected to a battery that creates a constant voltage v = 15.0 v . throughout the problem, use ϵ0 = 8.85x10-12 c2/n. m2 . find the energy u1 of the dielectric-filled capacitor.