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Firstly let's define Price Elasticity of Demand (PED): PED is the responsiveness of demand to a change in price.

In the real world, Uber is a great example, on a Saturday night demand for Uber ofte...

1. Bien que l'environnement soit un grand problème, la plupart des gens ne se sentent pas concernés. 2) Puisque nos ressources sont tellement limitées, nous ne devrions pas les gaspiller. 3) J'ai peur ...

This is a really common struggle for people learning and studying Spanish, even at university level. It's understandable because when we want to translate 'to be', for example; I am Naomi, I am friendly, ...

Firstly, the 'wave of excitation' is produced by the sinoatrial node (SAN) in the top of the right atrium - this is also known as the pacemaker, as this is what controls the rate of contractions. This wav...

df/dx = 4x - 2

turning point when differential = 0 

==>

4x = 2 hence;  x = 0.5

When x = 0.5 f(x) is equal to (substitute) 3.5

hence the turning point is at (0.5,3.5)<...