Answer:
4). 47 - 29i
Step-by-step explanation:
(5+√-36)*(1-√-49)=5*1 -5√-49+1*√-36 -√-36√-49 = 5-5*7i +6i-6i*7i=
=5-35i+6i-42(-1)=5+42-41i= 47 - 29i
6m
Hope this helps!!!
Q1: 0.65 percent
Q2: 0.31 percent decrease
Q1... 40-14=26 and divide the answer by the staring value
Q2...72-50 =22 divide 22 by 72