Answer:
4.5
Step-by-step explanation:
if your 7 is in the tenths place you will add one number to your 4 witch is in the ones place.
Answer:5.86 9.26
Answer:2/3
2i and -2i
I'll change u to x to be easier to understand.
x^2 = -4
sqrt(x^2) = sqrt(-4)
sqrt(-4) = 2i, or -2i
how this helps
