Top answers

How should I go about explaining how reliable a source is?

If a source is reliable, then what it tells us is likely to be accurate and very close to the truth of what actually happened. In order to determine the extent of a source's reliability, it is easier to brea...
AM
Answered by Alice M. • History tutor
22358 Views

How do you solve quadratic and linear simultaneous equations?

For two linear simultaneous equations, two algebraic methods can be used to find solutions.The first is elimination, which is usually a lot quicker. Elimination involves subtracting one equation form the oth...
JA
Answered by Jack A. • Maths tutor
10141 Views

What are volumes of revolution and how are they calculated?

Volumes of revolution are contructed by a fuction of x, y=f(x), rotated 360 degrees, or 2pi radians around the x asxis. For example, a function of y=2 would create a cylinder of radius 2 in its volume of rev...
JA
Answered by Jack A. • Maths tutor
9535 Views

What is Descartes' "cogito" argument?

In his search for unassailable knowledge, Descartes reaches in his first Meditation a hurdle in the form of his deceiving demon thought experiment. The demon Descartes imagines is one who deceives him about ...
RA
Answered by Ryan A. • Philosophy tutor
50291 Views

N = 2A + B. A is a two-digit square number. B is a two-digit cube number. What is the smallest possible value of N?

A is a 2-digit square number. In order to find the smallest N number we want to find the smallest possible 2-digit sqaure number. To sqaure a number means to multiply this number by itself, e.g. the square n...
SK
Answered by Silvia K. • Maths tutor
8310 Views