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OCR C2 2015 Question 8: (a) Use logarithms to solve the equation 2^(n-3) = 18,000 , giving your answer correct to 3 significant figures. (b) Solve the simultaneous equations log2(x) + log2(y) = 8 & log2(x^2/y) = 7.

(a)This question actually tells us what to do. It is very hard to miss "use logarithms to solve...". So our first step is going to be to use logs (espec...

JH
Answered by Jonathan H. Maths tutor
6784 Views

What top tips would you give for the BMAT test?

The BMAT test is very demanding by medical and dental schools that use them as part of their admissions process. Effective preparation is vital to perform well and have a strong chance at getting those co...

AG
2428 Views

If a person drinks a lot of water, the water content of their blood will increase. Describe how the water content of their blood is regulated.

Osmoreceptors in the hypothalamus detect the increase in water concentration. This stimulates the pituitary gland to release less ADH. This reduces the amount of ADH in the blood and so, reduces the amoun...

AS
Answered by Avnish S. Biology tutor
9030 Views

How has the role of TNCS aided development in poorer countries?

TNCs, or transnational corporations, are companies who have bases in countries other than their "home" or origin country (e.g. Apple, a major global TNC, has its headquarters primarily based in ...

KT
Answered by Kate T. Geography tutor
11582 Views

To what extent was the fear of absolutism responsible for the difficulties faced by the English monarchy in the years 1678-1688

I would begin by asking the student to break down the question. First, identify that the question is asking 'To what extent', so requires an evaluative answer such as, 'To some extent' or a definite Yes/N...

JL
Answered by Joanna L. History tutor
2796 Views

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