PLS HELP Use the rules of equations and inverse operations to solve the equation. In your final answer, include all of your work.
4 - x^2 = -16

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe