Which equation represents the area of the triangle? a) a = 1 2 (ac)(ab)(sin a) b) a = 1 2 (ac)(bc)(sin a) c) a = 1 2 (bc)(bd)(sin a) d) a = 1 2 (ab)(bd)(sin a)

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10