7 In the sum Z + E = C , vector X has a magnitude of 10.1 m and is angled 44.4 counterclockwise from the +x direction, and vector _) C has a magnitude of 13.5 m and is angled 216 counterclockwise from the -x direction. What are (a) the magnitude and (b) the angle _> (relative to +x) of B? State your angle as a positive number. (D (a) Number l Units (b) Number a Units 4}