Answer:
35i - 2
Step-by-step explanation:
(7 + 20i) - (9 - 15i)
distribute
7 + 20i - 9 + 15i
combine like-terms
35i - 2
hope this helps :)
Answer:
z = or z = 195.8
y=-30
a = 5
b = -7
x = 64
Step-by-step explanation:
Half-perimeter=length+width=width+3+width=43, 2×width=40 so width=20cm and length=23cm.
Finding the value of the second variable when the first variable is equal to one and then multiplying the second variable by the first variable of each answer will always work in this situation (two variable).