S = (10 x1 /2) + (1/2x- 2x 1/2²)
5 + (-0.25)
= 4.75
The first answer.
Point P is at (50,-40) the distance from Q to P is 80 units which you can find by subtracting the x of Q (-30) from the x of P (50).
50-(-30)=80
It then tells you point R is vertically above point Q so you know your x value for R will be the same as Q.
Add your distance from Q to P of 80 units to the y value of Q because you are traveling up.
-40+80=40
R will have a point of (-30,40) and a distance of 80 units
21/30 simplifies to 2.1/3 so it's a little bit bigger
An isosceles triangle. This triangle has 2 sides that are equal.
