Answer:
(7-5i)( 2+3i)
=7(2)+ 7(3i)-5i(2) -(5i)(3i)
= 14 +21i -10i +15
= 29 +11i
Answer:
Step-by-step explanation:
i think it is b
ANSWER
96 yd
EXPLANATION
Let the width of the rectangle be w, then, the length of the rectangle will be:

The area of a rectangle is calculated using the formula:



It was given that, the area of the rectangle is 320yd²

Divide both sides by 5.

Take square root of both sides to get:

This means the length is

The perimeter of a rectangle is given by:
P=2(w+l)
We plug in the values to get:

The perimeter is 96yd
Answer:
The expression represents the price you paid per gallon is:
- Price paid per gallon =

Step-by-step explanation:
To identify the expression is right, I'll show you with an example: suppose that you paid $56 buying 7 gallons of gas, now you can replace those values in the expression I gave you:
- Price paid per gallon =

- Price paid per gallon =

- Price paid per gallon = 8
And you can check this value by multiplying the price paid by the gallon and the number of gallons, which you obtain the number of dollars you spent:
- <u>Number of dollars (d) = 8 * $7 = $56 </u>