Step-by-step explanation:
2x-21+6=x-3
Because there are four people on the committee, and four positions, you would do 4 times 4 which gets you an answer of 16. hope this helps!!
4/7 = 8/14 = 12/21 = 16/28, etc
A, because negative is not rational
Answer:
-10/3 is the answer
Step-by-step explanation:
Given are two complex numbers as

Recall Demoivre theorem as
(cosA+isinA)(cos A+isin B) = cos(A+B)+isin(A+B)
Hence here we have sum of angles as
A+B = 63+117 =180

=
Since sin180=0 and cos 180=-1