Answer:
0.44
Step-by-step explanation:
im pretty sure it is 0.44 because of the division.
5(5x-3y=6)
3(2x+5y=-10)
25x-15y=30
6x+15y=-30
31x= 0
x = 0
5(0)-3y=6
-3y=6
y= -2
(0,-2)
55•5x=52
5x=52/55
5x= 0.95
x=0.19
cosA =
cosA = = =
Answer: 60%
Step-by-step explanation: multiply 18 by 100 than divide by 30