Find the circumference of the circle (use 3.14 for pi). round to the nearest tenth.

Let f(x)=2x and g(x)=2x. graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ?me asap

Which equation represents the function on the graph?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)