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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 hand, ...
EA
Answered by Erik A. • Spanish tutor
3002 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 pr...
TP
Answered by Tom P. • Economics tutor
2800 Views

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

Initially we are at an equilibrium where AD 1 is equal to SRAS 1 giving rise to a Price Level of PL 1 and a level of Real Output of Y 1 . The increase in oil prices would raise production costs across the ec...
MH
Answered by Max H. • Economics tutor
8328 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 of c...
DB
Answered by Dean B. • Maths tutor
4282 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 because ...
RP
Answered by Rob P. • Biology tutor
3348 Views