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Maths Puzzle
Numerical Ability
6^-2y^3z^-2/-2x^4y
please simplify and write the answer without negative exponents
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book Other Question
At noon, one ship sails north from Castaway Island at 15 knots and another ship sails east at 20 knots. How far apart will they be at 2:00 p.m.?
Where do I start? I am so lost... here is the problem...
Given f(x)=6x^2 + 5x - 4 find [f(x+h)-f(x)] / h