Top answers

How do you find the tangent of an angle in a right-angled triangle?

Divide the length of the opposite side by the length of the adjacent side
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Answered by Lydia W. • Maths tutor
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How to work out a fraction of an amount?

The key rule is to divide the amount by the denominator and multiply by the nominator. E.g: 3/5 of 45£ divide by the denominator 45/5=9 multiply by the nominator 9*3=27
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Answered by Augustina B. • Maths tutor
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What is the conservation of energy?

Energy comes in many forms (e.g. chemical, potential, kinetic). We say that energy is transferred when it changes from one form to another. The conservation of energy means that in a closed system the amount...
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Answered by Augustina B. • Physics tutor
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Given: h=3t^2, work out the value of h when t=5.

We have been told that t = 5 in this particular question. So our first step is to simply 'swap out' the t in the above equation for the number 5, as we have been told they mean the same thing. This gives us:...
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Answered by Alexander D. • Maths tutor
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What is an enzyme?

An enzyme is a biological catalyst. It is a protein with an active site that binds to a substrate to accelerate a chemical reaction.
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Answered by Epen T. • Biology tutor
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