Top answers

What is the function of the cell nucleus?

The nucleus contains genetic material which controls the activities of a cell
LC
Answered by Lydia C. • Biology tutor
5747 Views

What's Pythagoras Theorem and how can I use it?

Pythagoras theorem is: A^2 + B^2 = C^2. This might look confusing but it is actually quite simple. Pythagoras can only be used on a RIGHT ANGLED TRIANGLE! Then what you do is that the side of the triangle OP...
GS
Answered by Gabrielle S. • Maths tutor
3864 Views

Simplify. (x(^2)+4x)/(x(^2)+3x-4)

To start with trying simplify any equation, you need to first see if the top part of the equation and the bottom part can be factorized. Fortunately the top part and bottom part of the equation are both quad...
JR
Answered by Jack R. • Maths tutor
7722 Views

What's the difference between "Ser" and "Estar"?

Both verbs mean "to be" but the key difference is in the permanence of what they are describing. "Ser" is used when you're describing an essential characteristic of the person or thing, w...
EH
Answered by Emily H. • Spanish tutor
3023 Views

How do I figure out which case to use?

As an English speaker, a language that no longer uses cases, it can be really tricky to get to grips with the German case system. But once you start practising, you'll find it's not as horrible as you think!...
KC
Answered by Kate C. • German tutor
3877 Views