Calculate the perimeter of the following figure. trapazoid with two 4 inch sides, a 7 inch side, a 11 inch side, and 3 inches tall

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Can someone answer this question? : )

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.

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x