(2+2i)(5+3i)
10+6i+10i+6i^2
10+16i+6(-1)
4+16i
When you have an “i^2”, you also have a negative one. The simplified answer is 4+16i
Answer:
2sin^2(3x)
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
coplanar means 3 points in a plane. D is collinear and the others are just wrong. Brainliest here !!
Answer:
m = -1/2
Step-by-step explanation:
let me know if it helped
(too lazy to write a explanation)
Answer:
The z statistic is 0.23.
Step-by-step explanation:
Test statistic (z) = (sample mean - population mean) ÷ sd/√n
sample mean = 104 mg
population mean (mu) = 100 mg
sd = 55 mg
n = 10
z = (104 - 100) ÷ 55/√10 = 4 ÷ 17.393 = 0.23
