Answer:
-1.
Step-by-step explanation:
1) according to the DeMoivre's theorem:

2) if cos(π)=-1 and sin(π)=0, then cosπ+i*sin(π)=-1.
If there only one person then the total would be $40.25
Slope of EF = 5/2
Slope of XY=4/3
Further explanation:
"Slope is the steepness of a line"
The formula for slope when two lines are given:

Now,
<u>1. E(2-1) and F(4,4)</u>

<u>2. X(1, 4) and Y(-2,0)</u>

Hence,
Slope of EF = 5/2
Slope of XY=4/3
Keywords: Slope, Slope Calculation
Learn more about slope at:
#LearnwithBrainly
The area is 3/8 yd².
Area = length x width
Given:
length = 3/4 yard
width = 1/2 yard
Area = 3/4 yd * 1/2 yd
Area = 3*1/4*2
Area = 3/8 yd²
In multiplying fractions, multiply the numerators, then, multiply the denominators. lastly, simplify the fraction. 3/8 yd² is already in its simplest form.