If a=-5ia=−5i and b=-2+3ib=−2+3i, then find the value of the a^2ba 2
b in fully simplified form.

Me #1 using vocabulary words, including the word “congruent”, state why the measure of angle d is 120 degrees. #2 what is the measure of angle e and why?

Solve for x, y, and z. show all steps.

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15