exam
Maths Puzzle
Numerical Ability
simplify:
i(5+i)
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please help
somebody help
IS it possible to draw a quadrilateral so that all sides have positive slopes.If so do it if not explain why not.
expressions/53089 (2006-09-21 00:55:06): I need to justify each of these step, please help me with this.
5(n+4)+9n= (5n+20)+9n
=5n+(20+9n)
=5n+(9n+20)
=(5n+9n)+20
=(5+9)n+20
=14n+20