Chapter 5.2, Problem 34E

The graph of g consists of two straight lines and a semicircle. Use it to evaluate each integral.

(a) ${\displaystyle {\int }_0^{2}g(x)dx}$

(b) ${\displaystyle {\int }_2^{6}g(x)dx}$

(c) ${\displaystyle {\int }_0^{7}g(x)dx}$