sin(π/6) is independent of x, so

Answer:
A.) x-y=2 and x+2y=-2
Step-by-step explanation:
For option A, we have:
x-y=2
x+2y=-2
Subtract the first equation from the second, to get:
2y--y=-2-2
This implies that:
2y+y=-2-2
Simplify to get:
3y=-4
Divide both sides by 3 to get:

We substitute y=-1.3 into the first equation to get:
x--1.3=2
x+1.3=2
x=2-1.3
x=0.7
The solution is (0.7,-1.3), which is approximately (0.7, -1.4)
By inspection, all the other factors have solutions not close to (0.7, -1.4)
Answer:
Energy consumed = 1.73× 10⁵ J
Step-by-step explanation:
Given:
Power P = 48.1 W, Time = 1 Hrs= 3600 S
Formula of Power = Energy / Time
⇒ Energy = Power × Time
Energy = 48.1 W × 3600 S = 173,160 Joule = 1.73× 10⁵ J
Step-by-step explanation:
the answer is 6.125 and its will be divided by 125