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What is the difference between the preterite and the imperfect tense?

Firstly, I will explain the theoretical concept of both tenses to the student. In this case, both tenses place the action in the past, but the meaning of both tenses is radically different. On the one han...

EA
Answered by Erik A. Spanish tutor
2390 Views

How to identify/draw the different types of externalities

On the x-axis we have quantity, on the y-axis (instead of price) we have costs/benefits. For an externality in consumption (positive or negative) the "supply line" is always labelled as marginal...

TP
Answered by Tom P. Economics tutor
2221 Views

Explain the impact of an increase in oil prices on UK economic growth and inflation.

Initially we are at an equilibrium where AD1 is equal to SRAS1 giving rise to a Price Level of PL1 and a level of Real Output of Y1. The increase in oil prices ...

MH
Answered by Max H. Economics tutor
7121 Views

What is a Binomial distribution and when, in an exam, should I use it?

The Binomial distribution is a sequence of N trials which each have a probability, p, of occurring. Each trial is either successful (with probability p) or not. It can be used to give us the probability o...

DB
Answered by Dean B. Maths tutor
3673 Views

What is the difference between DNA and RNA?

So, to start with what's the same, they are both molecules that are made from a nitrogenous base (Check understanding of term) and a sugar phosphate backbone. Now onto differences, DNA gets its name becau...

RP
Answered by Rob P. Biology tutor
2892 Views

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