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How do you know whether to use avoir or être in the perfect tense?

Most verbs form their perfect tense with avoir. There are two main groups of verbs, however, which form their perfect tense with être :-All reflexive verbs -A group of verbs that are mainly used to talk ...

Answered by Roisin M. • French tutor

2532 Views

How do I write about poems?

Writing about poetry can be daunting because there is less certainty as to what is ‘right’; different people will respond to poetry in different ways. When faced with a poem, first read it through and thi...

Answered by Roisin M. • English Literature tutor

4767 Views

‘Smokers suffer from more lower respiratory tract infections.’ Justify this statement in light of respiratory tract protection mechanisms.

Smoke contains many harmful chemicals and carcinogens (such as polycyclic aromatic hydrocarbons). There are several ways in which smoking increases the likelihood of lower respiratory tract infections.

Answered by Ali K. • Human Biology tutor

2889 Views

R=1000e^-ct , it takes 5730 years for half of the substance to decay a. find the number of atoms at the start of the decay. b. calculate the number of atoms left when t=22920. c. sketch the function.

a.1000 b. R=62.5 c. Sketch

Answered by Prasad U. • Maths tutor

4673 Views

How do you integrate ln(x)?

I would use the whiteboard and write down y=lnx, and also the integration by parts formula below it. I would then explain how to treat ln(x) as the "u" and "1" as dv/dx; including why ...

Answered by Jamie Z. • Maths tutor

3338 Views