Answer:
help me first
Step-by-step explanation:
B) 
This is the only fraction that converts into 7.3 (location of point a).
Let me convert it for you

The location of point A is 7.3
Answer:
66.4°
Step-by-step explanation:
cos XYZ = XY/ZY = 6/15 = 2/5 = 0.4
Using a calculator for cos^(-1) of 0.4 you get 66.42182152°
x = 5
y = -1
Step-by-step explanation:
from second equation,
by putting the value of y in first equation
- y = -x + 4
- -1 = -x + 4
- -x = -1 -4
- -x = -5
- x = 5
x = 5 and y = -1