exam
Maths Puzzle
Numerical Ability
This question is from a homework assignment (#2) from University of Calgary. Winter of 2007.
6x-4y-1z=18
-5x-2y-2z=-31
4x-3y-2z=11
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exam Other Question
Determine which two equations represent perpendicular lines.
(a)y=4/7x-3 (b) y=3x-4/7
(c) y=1/3x+4/7 (d) y=1/3x-4/7
Write the following phrase using symbols. Use the variable x to represent the number. Eight less than three times a number