exam
Maths Puzzle
Numerical Ability
A hand of 12 cards is dealt from a well- shuffled standard 52 card deck of cards. What is the probability that the hand contains 4 jacks?
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exam Other Question
I do not understand these problems at all, could someone please help me?
The following equation represents an ellipse. True or False?
(x-3)^2/1 + (y+1)^2/25
x-8/x+5 / x-9/x+4