Top answers

Where does the quadratic equation come from?

This is a quick derivation of the quadratic formula for an GCSE Maths students looking to stretch themselves a little and go for that A*! If we have a general quadratic equation: ax 2 +bx+c=0 (eq1) You will ...
RM
Answered by Ryan M. • Maths tutor
5421 Views

Why does ionisation energy of elements generally decrease as you move down a group in the periodic table?

Ionisation energy is the energy required to remove the most loosely bound (furthest out) electron from an atom, in the gaseous state. As you move down a group in the periodic table, the number of protons in ...
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Answered by Sam B. • Chemistry tutor
7272 Views

How many different types of sentence logic relationships (sytactic relations) are there in Mandarin?

As a frequently tested point in A level papers , the logic relationships of sentences and the according conjunctions are very important in reading Chinese articles. Unlike English language, modern Chinese is...
XW
Answered by Xing W. • Mandarin tutor
4987 Views

Why there are multiple pronounciations for one single character in Japanese?

In Japanese writing and reading system there are two different ways to read Chinese Kanji characters: 訓読み ( kun yomi ) and 音読み ( on yomi ). Historically kun yomi is used as a way to mark the vernacular words...
XW
Answered by Xing W. • Japanese tutor
2854 Views

How do you form the future indicative tense with regular verbs?

The future indicative tense is used to describe actions that will happen in the future. It is formed with regular verbs through taking the infinitive form of -er , -ir , and -re verbs and adding the appropri...
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Answered by Rob C. • French tutor
4294 Views