Aright triangular prism has a height of 3 ft, a width of 4 ft, and a hypotenuse of 5 ft. the depth of the triangle is missing. if the surface area of the triangular prism is 192 square ft, find the depth of the triangular prism.

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?