Solve the following system of equations. Record your answer as an ordered triple. Don't forget to include the parentheses in your answer.

x- 4y+ 3z= -2
2x- y+ 4z= -22
3x- 3y+ 4z= -17

What is the first step of an indirect proof of a number that is divisible by two

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?

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.