If the complex number x = 3 + bi and |x|² = 13, which is a possible value of b? A) 2
B) 4
C) 9
D) 10

Aparking lot is to be 400 feet wide and 370 feet deep. how many standard-sized cars fit in this lot considering a double-loaded (w4) two way traffic set up, an angle of 90° and a sw of 9’ 0’’? (do not consider handicapped parking spaces, and consider 15’ for turning aisles). show your work.

Which equation represents the partial sum of the geometric series?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)