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How do you work out breakeven?

Breakeven is the output a company needs to meet to make their revenue equal costs. It's worked out using the formula Fixed costs divided by selling price minus variable costs.

Answered by Hannah W. • Business Studies tutor

2817 Views

A circle C with centre at the point (2, –1) passes through the point A at (4, –5).....

(a) Find an equation for the circle C.

Before tackling a question like this it is always a good idea to draw a rough sketch of all the information that's given to you.

Answered by Brodie W. • Maths tutor

18429 Views

Describe how negative feedback is used to control blood glucose concentration (6 marks)

Throughout your answer to this question make sure that you are cramming as much key language into it as possible! Phrases like 'islets of Langerhans', 'beta/alpha cells', and 'transporter proteins' will a...

Answered by Matt H. • Biology tutor

20724 Views

Express 3 cos θ + 4 sin θ in the form R cos(θ – α), where R and α are constants, R > 0 and 0 < α < 90°.

To find the value of R, use Pythagoras's Theorem using the coeffecients of cos θ and sin θ. The correct answer should be R=5. Expand the expression R cos(θ – α). Equate the expanded expression with 3 cos...

Answered by Anahita G. • Maths tutor

23672 Views