4=2.25x add 2x on both sides
1.78=x subtract 2.25 on both sides
If this an angle on a straight line the answer is k=73°
Multiply both by -1: 113.75-112=1.75
multiply answer by -1: -1.75
Answer:
38 + 37i
Step-by-step explanation:
(9 − 4i)(2 + 5i)
FOIL
first: 9*2 = 18
Outer: 9*5i = 45i
inner: -4i * 2 = -8i
last : -4i * 5i = -20i^2 = -20(-1) = 20
Combine together
18+45i-8i +20
38 + 37i
Well nine times 199 is 1,791but im not sure if thats what its asking
