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Discriminants and determining the number of real roots of a quadratic equation

What is a discriminant?

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Answered by Gus N. • Maths tutor

403073 Views

What factors affect the speed at which an action potential travels?

There are several factors affecting the rate and speed of an action potential:

1. Myelin sheath - This covers some of the nodes and acts as an electrical insulator where the a...

Answered by Zartasht (Tashi) C. • Biology tutor

95572 Views

What is the difference between 'por' and 'para'?

Although both these words can mean 'for' in English, the variations of translations mean 'por' and 'para' have very distinct uses. Although confusing at first, it is very easy to learn when to use each co...

Answered by Kate P. • Spanish tutor

4305 Views

What is the difference between mitosis and meiosis?

Mitosis is the cell division that produces 2 daughter cells with genetically identicle DNA to the parent cell. These are none as diploid cells.

Meiosis requires two stages of cell division to ...

Answered by Zartasht (Tashi) C. • Biology tutor

5524 Views

How do the endings change depening on the gender in Russian nouns?

In Russian nouns have three gender groups- masculine, feminine or neuter. Depending on the gender the endings of the nouns change. Knowing the gender is especially useful when it comes to learning cas...

Answered by Anzela S. • Russian tutor

12635 Views