An observer stationed 20 m away from a tall
of elevation of the top of the building is 68° and the angle of depression of
its foot is 50 degrees. Calculate the height of the building.

Use the knowledge of x- and y- intercepts to choose the correct graph of the equation 3x+6y=6

Rosy waxes 2/3 of her car with 1/4 bottle of car wax.at this rate,what fraction of the bottle of car wax will rosey use to wax her entire car

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.