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What's the proof for the quadratic formula?

Mathematics is a unique subject within which many equations that you encounter have lots of functions and can be derived from the basics. The quadratic formula for instance is incredibly useful to quickly so...
AO
Answered by Azeem O. • Maths tutor
6114 Views

How do I improve my pronunciation?

Firstly, it is important to highlight that different areas of Spain and the Spanish-speaking world have different ways of pronouncing the same word and there are varied accents so there isn't necessarily a o...
IW
Answered by Isobel W. • Spanish tutor
2166 Views

In the reaction (SO₂ + 2H₂S → 3S + 2H₂O), 44.3g of SO₂ are mixed with 44.3g of H₂S. Calculate the maximum mass of sulfur that could be formed.

1. Check if the equation is balanced, luckily this one is! 2. Check if any unit conversions are needed. All masses are in grams, so no problem there. 3. Using (moles = mass ÷ Mr), calculate: the no. of moles...
KV
Answered by Kundai V. • Chemistry tutor
4090 Views

Solve: x^2-x-6 using factorisation.

To tackle this question we start by thinking about how many brackets will we need to factorise this equation. As there are three parts to the equation it is most likely we are looking for two brackets. Knowi...
Answered by • Maths tutor
5019 Views

What is the difference between distance and displacement?

Let us have an object that starts at an origin point O and ends at some finishing point F. Distance is the total length of the path taken by the object between O and F, this is also known from our everyday l...
GM
Answered by Greg M. • Physics tutor
2093 Views