When tom found found the difference -11 - (-4) he got an answer of -15. what might tom have done wrong?

Solve: 3x+y=6 4x-2y=18 show all work !

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.