exam Maths Puzzle Numerical Ability

solve the inequality and solution in interval notation

x^2-6x-4 > 0

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exam Other Question

The question says round to the nearest tenth.

Round 25.13
Round 50.26
Round 113.04

Round all of those to the nearest tenth. Can some one show how to do that problem? What is the vertex? How do you find the vertex? y=x^2+x-12