Awoman that is 68 inches tall casts a shadow that is 80 inches long. a tree casts a shadow of 160 inches. how tall is the tree?

Evaluate cos2θ for cosθ = square root of 3/2

40) linda was making chocolate truffles for the first day of school. the recipe for 20 chocolate truffles is: i cup of cream 2 cups of dark chocolate she noticed this will not be enough truffles for the 42 sure that all students in each homeroom next year. to be sure that all students receive a truffle, linda must adjust her recipe. a. complete the recipe for 42 truffles cups of cream - cups of dark chocolate work:

F(x)=5/6x+3 which of the following is true