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Complete the square of 2x^2+16x-24 and hence state the minimum value of the function

2[(x^2+8x-12) [Explain basic complete the square technique]2[(x+4)^2 -16 -12]2[(x+4)^2-28]2(x+4)^2-56The term (x+4)^2 is always greater or equal to 0. So the smallest value it can have is 0. So the minimu...

Answered by Jake S. • Maths tutor

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Qué hacer el fin de semana/ qué quieres hacer durante las vacaciones?

Estas son algunas ideas de lo que puedes hacer en tus días libres. Primero, es importante aprovechar el tiempo libre para relajarme, divertirme, estar con mis seres queridos y tomar tiempo para reflexiona...

Answered by Charlotte S. • Spanish tutor

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Consider the transition metal complex [CoCl3(CO)3]. What is a) The oxidation state of the metal centre. b) The dn configuration of the metal centre. c) The co-ordination number of the metal centre.

a) +3. Cl ligands carry a negative charge while CO ligands are neutral so the all together the ligands have a charge of -3. Since the complex is neutral overall, the metal must cancel out the charge of t...

Answered by Robert S. • Chemistry tutor

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f(x) = (x-5)/(x^2+5x+4), express this in partial fractions and hence find the integral of f(x) dx between x=0 and x=2, giving the answer as a single simplified logarithm.

f(x) = (x - 5) / (x + 4)(x + 1) let f(x) = A / (x + 4) + B / (x + 1) so (x - 5) / (x + 4)(x + 1) = A / (x + 4) + B / (x + 1) then multiplying by (x+4)(x+1), we get ...

Answered by Toby S. • Maths tutor

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Evaluate the view that sociology can be studied as a science.

The founding fathers of sociology, who are commonly referred to as the early positivists Emile Durkheim (1858-1917) and Auguste Comte (1798-1857) believed that sociology could be studied scientifically an...

Answered by Cheila C. • Sociology tutor

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