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Explain how type 1 diabetes occurs

Type 1 diabetes occurs when the immune system to fails to identify a group of cells in the pancreas called the beta islet of Langerhans cells as 'self' cells. This means that they are recognised as 'foreign'...
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Answered by Emma R. • Biology tutor
4427 Views

How do I solve simultaneous equations?

Let's use an example. x+y=6 2x+3y=14 Find the values of x and y. When I was kid back then, I was always wondering why are equations important? Well, for me, its because we want to be precise with our asnwers...
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Answered by Wilson H. • Maths tutor
6145 Views

Why at room temperature is H2O a liquid, but H2S is a gas?

This question is basically just asking you why water has a higher boiling point that H 2 S. So you need to ask yourself what is the factor which means water has a higher boiling point? If you remember back t...
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Answered by Melissa K. • Chemistry tutor
47369 Views

What is the Pythagoras Theorem?

The Pythagoras Theorem equation is: a 2 + b 2 = c 2 It is used to calculate an unknown side of a right angled triangle. a, b and c represent sides of the triangle and you can rearange the formula to find whi...
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Answered by Natasha B. • Maths tutor
5442 Views

How do I simplify the equation 4x + 5x -2 - 2x + 7?

To simplify an equation the x terms can be collected together to give: 4x + 5x - 2x = 7x The numbers can be collected together to give: -2 + 7 = 5 Which then when put together makes 7x + 5
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Answered by Natasha B. • Maths tutor
6964 Views