A little help with D! I don’t know how to do it! Test is coming up and I need to know how to do this

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.