Select all of the following that are quadratic equations.
3^2 - 2x = 2x + 5
6x^2+ 15x = 0
x^3 - 3x^2 + 1 = 0
9x - 2 = 0 7x^2 + 5x - 2 = 0
5x - 1 = 2x + 7

Which solid has two triangular bases and three lateral faces, each in the shape of a rectangle? triangular prism triangular pyramid rectangular prism rectangular pyramid

Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.