Option 2: 18-5i is the right answer
Step-by-step explanation:
Given
When there is a negative number in radical, a new complex number iota denoted by i is introduced which is equal to 
So we will solve the given expression
Hence,
Option 2: 18-5i is the right answer
Keywords: Iota, complex numbers
Learn more about complex numbers at:
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Answer:
8x+40
Step-by-step explanation:
8(x+5)
Distribute
8*x +8*5
8x+40
For every liter she used, she drove 8 kilometers. In this problem you are finding the unit rate. In order to do this you divide 48 (kilometers) by 6 (liters of gasoline).
48 Divided by 6 equals to 6 Kilometers
—- —-
6 Divided by 6 equals to 1 Liter
For the second question you divide the liter by 6. Amelia used 0.1666 liters of gasoline per kilometer. 0.1666 is equivalent to 1/6.
4x+7 = x+10 parallel sides have to be equal in a parallelogram
subtract x
3x +7 = 10
subtract 7 from each side
3x =3
divide by 3
x =1
The answer is b click the icon to view the data table
