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Why do some verbs take avoir in the passé composé and some être?

French is a language that has lots of grammatical rules and irregularities but there are ways of remembering confusing constructions like this! The general rule is that verbs about movement or the change of ...
AH
Answered by Alice H. • French tutor
2233 Views

Consider the right angled triangle with vertices labelled a, b, c. Angle A = 60°, Angle B = 90°, length ab=4cm, length ac=xcm. If cos60° = 0.5, work out the value of x.

The first thing to do in such a question is to draw out the information you have been given. Not only does this help to process the question again, so that no vital information is missed, but also makes it a...
RR
Answered by Rebecca R. • Maths tutor
5567 Views

Describe how blood vessels help to control body temperature?

In hot environments, blood vessels under the surface of the skin dilate to allow more blood to flow through them. This causes more heat to be lost from the blood to the environment so body temperature decrea...
AC
Answered by Annabel C. • Biology tutor
4165 Views

What is osmosis

Osmosis is the net movement of water down the water potential gradient, through a semi permeable membrane.
AJ
Answered by Anna J. • Biology tutor
2578 Views

Solve these simultaneous equations 5x + y = 21, x- 3y = 9

rearrange the first equation so it reads y= 5x+y= 21 y=21-5xSubstitute this y value into the second equation x-3y=9 y=21-5x x-3(21-5x)=9Expand out the bracket and rearrange to find out what x equals ( be car...
HW
Answered by Harriet W. • Maths tutor
3017 Views