exam
Maths Puzzle
Numerical Ability
What numbers can not be used for X and Why? Can someone please explain what to do to solve this problem? thanks!
(X^2 - 4)/(9 - x^2)
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A ball is thrown upward from the roof of a building 100 m tall with an initial velocity of 20 m/s. Use this information for exercises 35 to 38.
When will the ball reach a height of 80 m?