Top answers

Find the volume and surface area of a cylinder, of length 20cm and radius 5cm.

A diagram is often helpful to draw for questions like this. 1.) Volume. For the volume of a cylinder, you must first find the area of the face, and multiply by the length. The formula for this is Vol= πr^2 ....
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Answered by Cameron L. • Maths tutor
10073 Views

How can you calculate the distance between 2 points in a grid if they're not on the same horizontal or vertical line?

Recall Pythagoras' theorem. a^2 + b^2 = c^2. Think about this as a triangle, with a and b being the lengths of the 2 perpendicular sides, and c being the length of the hypotenuse. [Drawing on a whiteboard wo...
TC
Answered by Tom C. • Maths tutor
5068 Views

When do you use the article with possessive adjectives? And when do you omit?

The general rule of thumb with Italian is that possessive adjectives use a definite article alongside them (e.g. il mio libro, la sua macchina). The only exception to this rule is with family members, where ...
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Answered by Freddie K. • Italian tutor
4713 Views

How do you solve a simultaneous equation?

Take 2 equations say equation 1: 2y+4x=26 and equation 2: y+3x= 18. What we need to do is make either the two x values or the 2 y values be equal so that we can subtract one of the equations from the other. ...
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Answered by Bryony S. • Maths tutor
4678 Views

What were the causes of the First World War?

At a surface level, the assassination of Archduke Franz Ferdinand can be seen as the main cause, but this was just the catalyst for bubbling tensions which would have resulted in a war regardless. There were...
JC
Answered by Jonathan C. • History tutor
4136 Views