Determine if the following side lengths create a triangle 16, 21, 39 Yes or no

Write the inverse of the logarithmic function used to represent the situation in model 1, f(x)=3+2in x . express the answer in radical form.

7x+8y=-18, 4x-9y=-3 solve the system of equations

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?