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simplify fully (x^2-5x+4)/(x^2-2x-8)

First we need to look at the quadratic formulas separately and factorise them. (x^2-5x+4) the sum is -5 and the product is 4, we need to find numbers that add to get -5 and multiply to get 4, which is -4,...

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Answered by Aisling H. Maths tutor
7126 Views

work out 2/15 x 15/22

When multiplying fractions you multiply the numerators together to get the resulting numerator, and multiply the denominators to get the denominator. In this case you would have (2/15 x 15/22) when writte...

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Answered by Aisling H. Maths tutor
8741 Views

How does a stimulus produce an action potential?

The cell begins at a resting potential of -85mV with a high concentration of potassium (K+) inside the cell. The stimulus must be strong enough to produce the all or nothing response which triggers the op...

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Answered by Meirion T. Biology tutor
3107 Views

Explain the interactionist approach to explaining mental disorders.

The biological approach to explaining mental disorders would suggest that arise as a result of genetic vulnerability combined with an environmental 'stressor' event which triggers the expression of such g...

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Answered by Katie E. Psychology tutor
3288 Views

Describe the main stages of cell division

Interphage: G1 phase = Increased metabolic reactions, protein synthesis, organelle production, cell checks whether to divide or not S phase = DNA replication --> creation of sister chromatids G2 phase ...

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Answered by Zoe G. Biology tutor
2175 Views

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