PLEASE HELP Which classifications would apply to a 45-45-90 triangle? Choose two.
O Acute
O Right
0 Obtuse
0 Scalene
0 Isosceles
O Equilateral

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).

Which of the following is the graph of y= square root -x-3

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?