exam Maths Puzzle Numerical Ability

sketch the graph of the function. label the vertex.
y=x2</sup>-x-5

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exam Other Question

find a number whose square is 36 greater than 5 times the number. A bag has yellow marbles and brown marbles. Half of the brown marbles are made of plastic. A marble is selected at random from the bag. What is the probability that it is a brown, plastic marble?