In the diagram below, ABCD is a rectangle. If the length of AB is 7 m and the length of BC is 12 m, what is the length
of AC in meters?

What is the exact volume of the cylinder 1.5 m 2.5 m

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

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?