Which of the following sets are subspaces of R3?A. {(x, y,z) | 2x−7y−3z=0}B. {(x, y,z) | x, y,z>0}C. {(x, x+2,x−7) | x arbitrary number }D. {(−5x−8y,−6x−4y,−9x+4y) | x, y arbitrary numbers }E. {(x, y,z) | −2x+7y=0,3x−5z=0}F. {(x, y,z) | 6x+9y+8z=5}

Jack is considering a list of features and fees for denver bank. jack plans on using network atms about 4 times per month. what would be jack’s total estimated annual fees for a checking account with direct paycheck deposit, one overdraft per year, and no 2nd copies of statements?

Which representation has a constant of variation of -2.5

Two rectangular prisms have the same volume. the area of the base of the blue prism is 418 4 1 8 square units. the area of the base of the red prism is one-half that of the blue prism. which statement is true?