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With reference to this extract, explain what J.S Mill means by happiness.

In “Utilitarianism” Mill argued that happiness was the sole basis of morality. Through observation of other men and women he found that all people have a natural tendency to seek happiness and therefore c...

GT
Answered by George T. • Philosophy tutor
3855 Views

At 25 °C, the initial rate of reaction is 3.1 × 10−3 mol dm−3 s−1 when the initial concentration of C is 0.48 mol dm−3 and the initial concentration of D is 0.23 mol dm−3 . Calculate a value for the rate constant at this T when rate = k [C][D].

The rate equation is given. So the first step is rearranging it to make the rate constant k the subject of the equation, by dividing both sides by [C][D]. k = (rate/[C][D]) now plug in the values given in...

KC
Answered by Krystof C. • Chemistry tutor
3481 Views

Why do you times the reciprocal of the second fraction by the first when dividing fractions.

Let's use an analogy here where divide means share/split. If you share 1 pizza between a couple of 2 people, they will each end up with a half. Now lets try picture the reverse slowly.You have a couple of...

SG
Answered by Saleh G. • Maths tutor
2468 Views

Evaluate 25^(3/2) giving your answer as an integer or simplified fraction (2 marks).

Evaluate just means "write this number in a different form/ find the answer". ( Step 1) break down the indices (power) to an integer and fraction (2 parts) eg: 253/2= 253 * 1/2

SG
Answered by Saleh G. • Maths tutor
17863 Views

Write the equation x^2 + 6x - 40 = 0 in the form (x + a)^2 - b = 0 and then solve for x

(x2 + 6x + 9) - 49 = 0
(x + 3)2 - 49 = 0

then to solve

(x + 3)2 = 49
x + 3 = +-7
x = -10 or x = 4

DS
Answered by Darragh S. • Maths tutor
3779 Views

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