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If angle 2=3x +1 and angle 3=2x +4what is angle 2

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis