Which pair of lines are perpendicular?
A) 8x - 4y = 24; Y=-2x+7
B) = 3v = 15; y = 3x+4
C) 21 - 5y = 5; 5x - 2=4
D) x + y = 10; x-y=3
E) 5x-y=1;y=1/5x+9

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

What is the value of x in the following equation. -x ^3/2 = -27

Need an artist designed a badge for a school club. figure abcd on the coordinate grid below shows the shape of the badge: the badge is enlarged and plotted on the coordinate grid as figure jklm with point j located at (2, -2) and point m is located at (5, 4). which of these could be the coordinates for point l? a. (2, 4) b. (8, 4) c. (5, 1) d. (5, 7)