If f(x)=2x and g(x)=−2x3+2x, then what is f(x)+g(x)? x3+2x

−4x3+2x

−2x3+4x

2x

Combine like terms to make a simpler expression 3z+z

Look at the hyperbola graphed below. the hyperbola gets very close to the red lines on the graph, but it never touches them. which term describes each of the red lines? o o o o a. asymptote b. directrix c. focus d. axis

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.