Answer:
20°
Step-by-step explanation:

X(x + 3) + x(x - 3) = 2
x^2 + 3x +x^2 - 3x = 2
2x^2 = 2
x^2 = 1
x = +1 and x = -1
answer
x = +1 and x = -1
Answer:
9 meters
Step-by-step explanation:
V = 1/3 * pi * r^2 * h
339.12 = 1/3 * pi * 6^2 * h
h = 3 * (339.12)/(36 pi)
h = 9 meters
To simplify rational expressions, simply see and check if there is a common number or same number that can be divided from in both. If not here, you would simply multiply the numbers together.
Then simplify if you would need to.
It would be 85x/6