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Solve the following to find x. x^2 +3x -10 =0

This is an example of a quadratic equation. One way of solving it wwould be to use the quadratic formula. You can subsitute the values of a, b and c into the formula where a=1 b=3 and c=-10. This will give 2...
NC
Answered by Nathan C. • Maths tutor
12714 Views

How do you form the future (near future) tense?

To form the near future you take the infinitve and add '-ai, -as, -a, -ons, -ez, -ont' at the end. For example: Regarder: to watch (regular -er verb) je regarderai tu regarderas il/elle regardera nous regard...
KR
Answered by Katie R. • French tutor
4244 Views

Can you name and describe the four levels of protein structure?

Primary structure - This is the sequence of the amino acids on the polypeptide chain. The amino acids are held together with covalent bonds. When mutations occur, they effect the primary structure of protein...
FL
Answered by Francine L. • Biology tutor
5437 Views

Why can't you say "ayer he visto a Marcos"?

You can only use the perfect tense, "haber + perfect participle" when something is either very recent or is still ongoing. "Ayer", yesterday, is definitely not still going on, and it's no...
CS
Answered by Claire S. • Spanish tutor
3964 Views

When should I use the perfect and imperfect tenses when talking about past actions?

For this question we will use the verb manger (to eat) as an example. The perfect tense is used to describe an action which took place once in the past. You can think of it as a single, completed action . EX...
LG
Answered by Laura G. • French tutor
4221 Views