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Firstly we need to work out the new price of the 3 litres of shampoo after 15% has been taken off.  Let's use the three step method for percentages. 100% is £12.80 £12.80/ 100= £0.128     1% is £0.128 £0....

f'(x)=2x+5

note that f'(x)=nx^n-1

so 2x is originally x² as this is 2x^2-1

and 5 is originally 5x^1-1

 f(x)= x²+5x+c...

The populations of finches became separated geographically (on different islands). Then genetic variation developed in these isolated communities. Natural selection acted differently in these isolated com...

La película “Mar Adentro” trata del tema polémico de la eutanasia. El protagonista, Ramón Sampedro tiene como único deseo terminar su vida. Evidentemente, su papel en el desarrollo del tema de la eutanasi...

To best answer this question in an exam-style setting I would opt for a thematic approach. By firstly examining the entangled web of alliances that emerged in Europe at the end of the 19th Century, one ca...