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Work out ∛16 as a power of two. (AQA GCSE Higher paper 2017, Q24b)

When you're working with fractional indices, I find the following rhyme really useful:"Fractional indices are like a flower: the bottom's the root, the top's the power".We have a cube root <...

RD
Answered by Ruth D. Maths tutor
21734 Views

Two apples and three bananas cost a total of £1.30. Seven apples and one banana cost a total of £1.70. Find the cost of a) one apple and b) one banana.

First, look at the key information from the question and form an equation for each of the first two sentences. These equations are as follows (let a represent the number of apples and b represent the numb...

JS
Answered by James S. Maths tutor
16932 Views

Find the values of A between and including 0 and 360 degrees for tan(2A) = 3tan(A)

You cannot work with this equation in the current form so you must use identities to find an equivalent form that you can work with. It is known that tan(2A) = 2tan(A) / 1-tan2(A) so set this e...

DM
Answered by Daniel M. Maths tutor
5381 Views

"Why do the central bank control monetary policy, but the government control fiscal policy?"

As of 1997, monetary policy has been independent from the government in order to remove any political bias or influence from the decision making. The government often had the habit of reducing interest ra...

TD
2288 Views

Can you please explain the lock and key model of enzyme action to me?

Okay, so let's get back to basics. What is an enzyme? An enzyme is a biological catalyst that speeds up chemical reactions. How does it do this? All enzymes have active sites, which is where certain molec...

ET
Answered by Eva T. Biology tutor
9006 Views

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