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Draw the curve for x^2-5x+6

In order to find the intercepts of this curve, we first need to factorise the quadratic equation. We need to find 2 numbers that add together to equal -5 and those two same numbers multiply together to equal...
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Answered by Nilja S. • Maths tutor
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Explain how bacteria can become resistant to antibiotics.

Sometimes, a chance mutation in bacterial DNA allows certain bacteria to become resistant to certain types of antibiotic. When an antibiotic is given, only the non-resistant strains of bacteria will be kille...
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Answered by Rachel A. • Biology tutor
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On a Production Possibility Frontier diagram, indicate a point where resources are efficiently allocated (label X) and an inefficient one (labelled Y). Explain why X is efficient, why Y is inefficient and how output could be increased from both.

Concave PPF diagram - point X anywhere on the curve, point Y strictly inside the curve. X is efficient because an increase in output of one good cannot be achieved without reducing the output of the other (f...
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Answered by Karl T. • Economics tutor
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What is ratio analysis and why is it being used?

Ratio analysis is a numerical technique of re-expressing financial statements. It aids decision making by summarising and interpreting financial statements more easily. There are different sets of ratios, ea...
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Answered by Nazik S. • Accounting tutor
4048 Views

(x - 3)(x + 4) = 0 Solve for x

(x - 3)(x + 4) = 0 x=3 and x=-4
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Answered by Danayan L. • Maths tutor
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