What is the approximate volume of a cylinder with a radius of 3 ft and a height of 4 ft? use 3.14 to approximate pi. express your answer as a decimal to the hundredths place. enter your answer in the box. ft³

In a quadratic function of the form ax^2+bx+c, which of the following is not true? a. the y-intercept is c. b. if a is positive, the parabola opens up. c. the vertex has an x-coordinate of -b/2a. d. the axis of symmetry is the line y=-b/2a.