Which of the following are equations of perpendicular lines? a. y= -1/2x+3 , y=-2x+3 b. y= -1/2x+3 , y= 2x-3 c. y= -1/2x+3 , y= -1/2x - 1 d. y= - 1/2x+3 , y= - 2x+1

7.(03.01 lc)which set represents the range of the function shown? {(-1, 5), (2,8), (5, 3), 13, -4)} (5 points){-1, 2, 5, 13){(5, -1), (8, 2), (3,5), (-4, 13)){-4, 3, 5, 8}{-4, -1, 2, 3, 5, 5, 8, 13}

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π