Top answers

How do you solve linear algebraic equations?

3 simple steps: Expand out brackets. Group like terms together. Make x the subject of the equation.
AP
Answered by Athul P. • Maths tutor
3249 Views

Should I always plan my essays during exams, even when there is not a lot of time available?

Firstly, you need to take into account that each person is different, and the only way for you to understand what works best for you is by practicing. However, there are a few things you can do that will def...
CS
1375 Views

Factors that affect the demand of a good or service?

To remember some of the factors that affect the demand of a good or service, just learn the mnemonic PIPCA:Price (of the product)Income Price of substitutes Consumer tasteAdvertisement
MN
Answered by Maria N. • Economics tutor
2169 Views

How is the Hawaiian Island chain forming?

The Hawaiian Island chain is a collection of volcanic islands in the Pacific Ocean that have formed over a hotspot in the centre of a tectonic plate, rather than at a plate boundary (where volcanoes commonly...
RM
Answered by Romy M. • Geography tutor
11928 Views

Differentiate with respect to x: x*cos(x)

Firstly, x cos(x) is a product of two functions of x. Therefore we can use the product rule to work out the derivative of the whole function. Differentiating each part makes it easier to visualize the formul...
SS
Answered by Stefan S. • Maths tutor
3609 Views