exam
Maths Puzzle
Numerical Ability
Which label describes the following? 2x^2 - 1 = 0
A) Linear equation B) Equation which is not linear C) Expression
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exam Other Question
12(y+5)=13y=2
you need to select a 4 character password for a computer account. Any digit 0-9 and any letter A-Z can be used for a character, and digits and letters can be repeated. How many possible passwords are there?