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8. Because if you add the degree of angle 7 to angle 8, then it makes a 180 degree angle, which is supplementary. Hope this helped

e) none of the above because the measure of angle cba is 101°

-10i^2-4i

step-by-step explanation:

evaluate for p=2,q=5i

(2−4)(2+5i)i

(2−4)(2+5i)i

=−10i2−4i