How do i "determine whether the forces in each pair are pulling at right angles to each other"?
ex. 45 ib, 24 lb, resultant force 51 lb

Factor. 8x2y2 – 4x2y – 12xy 4(8x2y2 – x – 12xy) 4(2xy – 4x2y – 12xy) 4x2y2(2xy – xy –3) 4xy(2xy – x – 3)

Solve the system of equations. y= 2x y= x^2 - 15

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent