Write the system of equations represented by the matrix. [0 1 2 4]
[-2 3 6 9]
[1 0 1 3]

What point is the projection of q on a) r b) s c) t

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

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?