Find the area of the trapezoid by decomposing it into other shapes. A)40 cm2
B)45 cm2
C)50 cm2
D)55 cm2

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Can someone me with this problem i don't understand i need

George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain