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How do I know if verbs take "avoir" or "être"?

The difference between avoir and être is a grammatical distinction that often confuses students, but is absolutely necessary to know when forming the perfect tense, as well as other more complex tenses...

EB
Answered by Eleanor B. French tutor
15058 Views

Describe the 3 types of isomers?

Definition: Isomerism is when 2 molecules have the same molecular structure but a different structural arrangement (structural isomerism) or a different arrangement in space (st...

JC
Answered by Julia C. Chemistry tutor
32843 Views

The area of a square is 49cm^2. The perimeter of the square is equal to the circumference of a circle. what is the radius of the circle?

This is a geometry question. 

We know that a square has 4 equal sides of x, and that it's area is given by A=x2

So we can work out the length of the side of the...

JC
Answered by Julia C. Maths tutor
16005 Views

In the field of genetics what does the term "mutation" describe?

A mutation is a change in the sequence of nucleotides that make up DNA. This can be caused by a range of internal and external factors. Mutations within the coding region of genes can lead to changes i...

JB
Answered by James B. Biology tutor
7078 Views

How to solve polynomials

First of all let's start with a lttle explanationn of waht a polynomial is.

A polynomial is a function of x denoted f(x) which is defined as

f(x)=a0+a1...

PW
Answered by Piotr W. Maths tutor
8962 Views

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