exam Maths Puzzle Numerical Ability

For the quadratic equation f(x) 5.64x^2-3.135x-5.79
What is the Minimum Value? What is the x an y intercepts? What is the Y?

For the quadractic equation f(x) 5.79x^2-3.135x-

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exam Other Question

show that a/(b+c) + b/(c+a) +c/(a+b) > 3/2 With only the small valve open, all of the liquid can be drained from a large vat in 4 hours. With only the large valve open, all of the liquid can be drained from the same vat in 2 hours. How long would it take to drain the vat with both valves open?