Tell whether the lines for the pair of equations are parallel, perpendicular, or neither. y=-4/5x + 34x-5y=-15a. parallelb. perpendicular c. neither

Given tan∅=4/3 and π< ∅< (3π)/2; find cos2∅ a. -24/25 b. 24/25 c. -24/7 d. -7/25

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)