exam Maths Puzzle Numerical Ability

Label each of the following situations �P� if it is an example of parametric data or �NP� if it is an example of nonparametric data.
1. A manufacturer produces a batch of memory c

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can you help me solve this: Determine if the trinomial is a perfect square. If so, factor the trinomial. (You may have to take out a common factor first.)
m^2 + 18mn + 81n^2 How much of an alloy that is 30% copper should be mixed with 200 ounces of an alloy that is 90% copper in order to get an alloy that is 70% copper?