Answer:
x=5,y=-12
Step-by-step explanation:
You add the two equations to get: 4x=20
Then you get x=5.
You plug this in to x-y=17 to get y=-12
The answer is x=5 and y=-12
N(s) = 36
n(F) = 18
P(E) = 18 / 36
= 1/2.
Answer:
Step-by-step explanation:
(2+5xi)(7-xi)=2(7-xi)+5xi(7-xi)
=14-2xi+35xi-5x²i²
=14+33xi-5x²(-1)
=14+33xi+5x²
=14+5x²+33xi
