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How Do I Choose Which Texts I Should Use For My Exam?

When thinking about exam texts, you should first look at past paper examples to get a feel for what kind of questions you will be asked. For example, if the theme of a paper is "love", you will,...

Answered by Indya S. • English and World Literature tutor

3389 Views

Solve the simultaneous equations: y=x/2 + 2 and 2y+3x=12

Label the equations (1): y=x/2 + 2 and (2): 2y+3x=12. Firstly, multiply equation (1)by 2, this will give you (1a): 2y=x+4, then, substitute (1a) into (2). This gives you (x+4)+3x=12. Therefore, 4x+4=12. 4...

Answered by Joseph B. • Maths tutor

6049 Views

Solve the equation x^2-9x+20=0

First, we need to factorise the equation on the left hand side, this can be done by finding two numbers that add together to make the 'b' coefficient (-9) and multiply to make the 'c' coefficient (20).

Answered by Joseph B. • Maths tutor

29298 Views

If f'(x)=3x(x - 1), find f(x)

Due to notation difficulties, S = integral sign. This is a straightforward integration question, firstly we expand the brackets:

f'(x)=3x^2 - 3x f(x)=S(3x^2 - 3x)dx f(x)=3/3x^3 - 3/2x^2 + C f(x)=x^...

Answered by Grace R. • Maths tutor

4994 Views

Discuss the implications of increased output on EOS and DOS within a firm.

As output increases it is a general rule that cost decreases, but why is this? Let's look at the principle of EOS and how they reduce costs. Starting with Technical EOS, here you have one fixed cost for t...

Answered by Howard C. • Business Studies tutor

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