book
Maths Puzzle
Numerical Ability
Solve the following system using Cramer's Rule.
-2.7x + 1.5y = -1.53
1.8x - 5.5y = -1.68
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book Other Question
solve -8x<=2
my brother actually needed help on this one, I forgot all of my Algebra I work. the problem was x^3 and the choices were a) x=2 b) x=5 and c) x=-3
I dont get it at all to explain it to him! help! thanks sooo much!
-Emily