exam Maths Puzzle Numerical Ability

April, Mae, june and Julie were born in consecutive years, in that order, with april being the oldest. All they will tell you is that the sum of the squares of their ages is 534. How old are they?

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exam Other Question
Identify the axis of symmetry, create a suitable table of values, and sketch the graph. I am having difficulty creating the table.

y=x^2-5x+3

Thank you so much for any help you can give me. what is the expected values of the following probability distribution.
y p(y)
5 .15
10 .25
15 .05
20 .20
25 .35