Which of the following lines are perpendicular to the given line? y=1/2x + 5 a) y= 2x -4
b) y= -2x -10
c) y= 1/2x - 5
d) y= -1/2x+ 5

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

What is the perimeter of an equilateral triangle if each side is (x+3)?

In the picture below, line pq is parallel to line rs, and the lines are cut by a transversal, line tu. the transversal is not perpendicular to the parallel lines. note: figure is not drawn to scale. which of the following are congruent angles?