exam Maths Puzzle Numerical Ability

If a + b + c = 0, a^2 + b^2 + c^2 = 1, find a^4 + b^4 + c^4

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exam Other Question

Give the coordinates of the following points seperatly

(-2, 3) (-3, 2) (2, -3) (3, -2) At 10am Brad headed west at 8 mph. At noon Danny headed east from the same place at 12mph. What time was it when they were 116 miles apart?