exam
Maths Puzzle
Numerical Ability
x^2 -6x -27<0
(x-9)(x+3)<0
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exam Other Question
Use either the fundamental counting principle or the permutation formulas (or both) to answer the following:
In how many different ways can you arrange the letters of the word COMPUTER taking 4 at a time?
Find the sum. Express the answer in simplest form.
-6g^2+9/h^2-2 + 7g^2-6/h^2-2