Helga knows that the corresponding angles of two triangles are congruent .she claims that the two triangles must be congruent .is helga correct?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

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.