Geraldine is picking a four-digit password by using the digits 0 through 9. she can use each digit only once. how many different pass words are possible?

Choose the triangle with x equal to 17.

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).