Answer:
-
i
Step-by-step explanation:
Given
Multiply numerator/ denominator by i
=
[ i² = - 1 ]
= 
= -
i
For the mean you add them all up and divide by the ammount of numbers you added. So it would be 118
Answer:
2
Step-by-step explanation:
Answer:
51 cents for 17 inches of wire
Step-by-step explanation:
22 = 66
17 = x
22x = 66 * 17
22x = 1122
x = 51 cents
or
22 inches costs 66 cents
1 inch costs 3 cents (66 / 22 = 3 cents)
17 inches costs 51 cents (17 * 3 = 51 cents)