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Solve the simultaneous equations y = x + 3, y^2 - x^2 + 3 = -6x

Here, we have two equations involving two variables, x and y. The question asks us to 'solve' the set of simultaneous equations. Equivalently, it is asking us to find the x values (and corresponding y values...
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Answered by Anthony H. Maths tutor
10297 Views

Why do bacteria become resistant to antibiotics?

Antiobiotics kill bacteria but bacteria can become resistant to antibiotics. This happens through a process called natural selection. Within a group/population of bacteria they will all have small difference...
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Answered by Lysander G. Biology tutor
5151 Views

What is Genre?

What is Genre? Genre is a term which gets taken for granted in English literature. Its most basic definition is that it is the type, style, theme or tone of a piece of literature. Drama, novels and poetry ca...
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Answered by Jack M. English tutor
13646 Views

How do I work out the different elasticites of demand?

Elasticity is the proportionate responsiveness of a second variable to an initial change in the first variable. There are four different types of elasticites: 1. PED = Price Elasticity of Demand 2. YED = Inc...
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Answered by Jessica E. Economics tutor
3839 Views

How do I learn new vocabulary?

There are many different ways to learn new vocabulary in Spanish. 1. I personally prefer using online resources such as Quizlet and applications such as Duolingo. You can enter specific vocabulary lists onto...
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Answered by Jessica E. Spanish tutor
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