exam Maths Puzzle Numerical Ability

a plane flies 285 km due west and then 320 km due north. What are its distance and bearing from the starting point

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exam Other Question

Multiply and simplify by factoring. Assume that all expressions under radicals represent nonnegative numbers.

root (3, y^4) root (3, 81y^5) What other sets of real numbers are there other than the set of real numbers, its subsets and find five examples of the set(s)?