The sides of a quadrilateral, taken in order, are 5,12,14 and 15 meters respectively, and the angle between the first two sides is a right angle. Find its area.

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

Standard deviation of 19,29,21,22,23