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Rearrange the following to make m the subject. 4(m – 2) = t (5m + 3)

In this equation we have two variables (meaning a symbol - usually denoted by a letter - which represents varying values) ‘m’, and ’t’. The question is asking us to make m the subject of this equation which ...
HG
Answered by Harry G. • Maths tutor
3822 Views

What is differentiation?

Differentiation is a method used to find the rate of change of a function with respect to a given variable, eg. how f(x) changes with respect to x. There are different ways to find the derivative of a functi...
HT
Answered by Harry T. • Maths tutor
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Find the derivative of A^4 + 2A^2 - 3A + 4

Ask if they have found derivations before.If not:When we differentiate a polynomial like this by using the fact that:The derivative of A^x is xA^(x-1).So, we multiply the unknown variable, A, by the power an...
JM
Answered by Jake M. • Maths tutor
3745 Views

(given a graph with a straight line and 2 labelled points) Find the equation of the line.

Every straight line can be written in the form y=mx+c.(If they seem completely unfamiliar with concept):M is known as the gradient of the line, which says how steep the line is. The bigger the number, the st...
JM
Answered by Jake M. • Maths tutor
3322 Views

There is a right angled triangle with sides of 5cm, 12cm and 13cm. What is the size of the smallest angle?

By the sine rule, sin -1 (5/13)=22.6 degrees.Equally, by the cos -1 (12/13)=tan 1 (5/12)=22.6 degrees.
AO
Answered by Akane O. • Maths tutor
8649 Views