Answer:
B
Step-by-step explanation:
Note that i² = - 1
Given
(4 - 2i)(1 + 7i) ← expand factors using FOIL
= 4 + 28i - 2i - 14i²
= 4 + 26i + 14
= 18 + 26i → B
Answer:
I
Step-by-step explanation:
We have to added up the like therms
like therms are therms with the same literal parts
3a - 7a = -4a
6b-3b= 3b
-4a + 3b+ 9c
Answer:
x=9
Step-by-step explanation:
12=x+3
9=x
you set the sides equal to eachother bc they have the same angles!
Answer:I know you said no PDFs but I know this site that can help you. Just search up ‘Desciptive Statistics Calculator’ it can help you a lot
Step-by-step explanation: