Answer:
(4,-4)
Step-by-step explanation:
3*(6x+5y=4)
18x+15y=12
-) 18x – 4y = 88
19y = -76
y=-4
plug back into first equation
6x + 5(-4) = 4
6x = 4+20
x=4
The answer is around 80.17
Sinx = cos19
sinx = 0.9455...
sin^-1(0.9455...) = 71
The answer is 71 degrees
Answer:
36.1
Step-by-step explanation:
53.9 + 36.1 = 90