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Solve the simultaneous equations: a) 2x + y = 18, b) x - y = 6

Notice we have two different equations but that 'x' and 'y' take the same value in both equation a and equation b. In order how to work out what values they take we need to combine the two different equat...

Answered by Rebecca C. Maths tutor
2887 Views

Why does ozone absorb a broader range of wavelengths of UV light than oxygen?

Covalent molecules such as oxygen and ozone absorb different ranges of UV light mainly due to differences in the types of bonds that make up their structure. It is therefore useful to first consider the L...

Answered by Eleanor S. Chemistry tutor
12634 Views

How does Priestly explore responsibility in An Inspector Calls?

Priestly explores the theme of social responsibility through the actions of the characters in the play. Through Sheila, the Inspector, and Mr and Mrs Birling, Priestly suggests that everyone has a coll...

Answered by Rosie W. English tutor
142355 Views

Find the coordinates of any stationary points of the curve y(x)=x^3-3x^2+3x+2

A stationary point is a point where the gradient of a curve is 0. The derivative of a curve gives us a function for the gradient at every point on the curve. So we have that dy(x)/dx=0 if and only if the ...

Answered by Robin S. Further Mathematics tutor
2724 Views

The sides of an equilateral triangle are given by the expressions x+y, 2y-1 and 3y-2x+1. Find the values of x and y.

This question test knowledge of the geometry of equilateral triangles and the students ability to solve linear equations.
First we note that an equilateral triangle has equal sides. Then we can write...

Answered by Joe S. Maths tutor
6890 Views

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