Find (a) xy to the nearest tenth and (b) the coordinates of the midpoint of xy.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Find the distance between the pair of points a(-1,8) and b(-8,4)

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read