4) Cómo aplicas la geometría en la vida diaria?

What are the sotions to the quadratic equation 9x^2=4

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.

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?