Answer:
66 degrees
Step-by-step explanation:
assuming that the line RN crosses line QO in the mid point, and that from that point to R, and to N, are the same length, then the angles R and N should be the same making angle O the complimentary angle, that would be 66 degrees
21.9 is the answer so I hope you get it right
51÷64= 0.796875
Round to thousandth place
0.797
9x - 8y = -11
-9x + 3y = 21
Add the second equation
9x - 8y = -11
+ (-9x) + 3y = 21
-5y = 10
divide both sides by -5
y = -2
substitute y into one of the two equations in the beginning
9x - 8(-2) = -11
9x + 16 = -11
subtract 16 on both sides
9x = -27
divide both sides by 9
x = -3
The answer is (-3, -2)
x = -3
y = -2
