Sine, cosine, and tangent are used when looking for a missing side length in the right triangle. True or False

Find the vertex of the function given below y=x^2-6x+1

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Miss henderson wants to build a fence around a rectangular garden in her backyard in the scale drawing the perimeter of the garden is 14 in of the actual length of a b is 20 ft how many feet of fencing what you need