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Solve simultaneously: x^2+y^2=25 and y-3x=13

The substitution method means we have to rearrange the linear equation to find a variable, either x or y, then substitute it into the quadratic (and more difficult to solve) equation, as follows...x 2 +y 2 =...
SC
Answered by Saffron C. Maths tutor
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Translate the following sentence: I bought a new laptop on Saturday.

We can break down the sentence into smaller sections: I bought; a laptop; new; on Saturday. "I bought" is a verb (a doing word). To write a verb correctly, we need to change it to reflect the perso...
HW
Answered by Helena W. Spanish tutor
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‘John Major was an unlucky Prime Minister’ Assess the validity of this view.

Politically, John Major was unlucky for the majority of his premiership, whereas economically it could even be argued that John Major was lucky. The best way this divergence can be seen is in the Black Wedne...
CQ
Answered by Claudia Q. History tutor
6015 Views

Expand and simplify (x – 2)(2x + 3)

This question is 3 marks, looking for 2 marks of working and 1 for correct answer. This type of question is called expanding brackets. A simple way to do this is using the acronym FOIL (First, Outside, Insid...
FC
Answered by Freddie C. Maths tutor
5177 Views

How do bodies respond to a stimulus?

There are multiple types of stimuli bodies can receive. These include light to the eye or a touch to the skin. I am going to use the example of a touch to the hand. The stimulus, a touch, is detected by rece...
JM
Answered by Jack M. Biology tutor
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