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How can you factorise x^2-9

First, we notice how there is only an 'x²' term and a number in this expression. Also notice that the number, 9, is a square number. Whenever you have an expression that looks like 'x²

Answered by Rebecca A. • Maths tutor

20923 Views

State the 2 important functions of the pancreas and its role in digestion?

The pancreas has two main functions: an exocrine function that helps in digestion and an endocrine function that regulates blood sugar. The pancreas contains endocrine glads which produces enzymes to aid ...

Answered by Amala J. • English tutor

2517 Views

A large, well established business’ annual accounts read that their long-term liabilities are £6.3 million, and their capital employed is £11.2 million. Evaluate their gearing ratio.

Gearing ratio is the capital structure of a company. It demonstrates the proportion of the business that is financed by debt in relation to shareholder equity.It currently stands that this business’ geari...

Answered by Stephanie B. • Business Studies tutor

1738 Views

To what extent can Hamlet be considered a heroic character?

Essay PlanHamlet as a heroic character: Consider what elements of his character can be viewed as heroic in light of more modern understandings of heroism....

Answered by Emily C. • English Literature tutor

10461 Views

Describe the process that allows an action potential to be passed across a synapse in the parasympathetic nervous system.

The action potential arrives at the presynaptic knob and causes the depolarisation of the plasma membrane. This causes voltage gated calcium channels to open allowing calcium to diffuse into the presynapt...

Answered by Rebecca O. • Biology tutor

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