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Migrants increase the tax base (the number of people paying taxes), which is an economic advantage.They can also stabilise the birth rates of countries with ageing populations, because migrants are very o...

To solve a simulatious equation, you should place the contents of each bracket equal to 0.
so (2x+3)=0 and (4x-2)=0
Lets start with the equation on the left.
2x+3=0
Minus...

To find the roots, let y=0 and find the places where the graph crosses the x-axis. When y=0, (8-x)lnx =0. This can be solved by splitting the terms and putting each =0. This is because if the answer is 0,...

Crude oil is a mix of hydrocarbons which have different boiling points. Larger hydrocarbon molecules and/or chains have higher boiling points as they have stronger intermolecular forces. The mixture of hy...

Solution is y = 4e² - 5 /2+e²
By applying log laws we can reach the following:
ln(2y+5/...