Search over 10,000 free study notes

Higher pressure in the left ventricle (thicker wall, more contractile power) means that blood will cross from the left side of the heart to the right. This means that not as much oxygenated blood will be ...

For this question, we have to integrate x² multiplied by sin(x). For integrating a product, you must use a method called integration by parts. Without bogging ourselv...

The force of gravity decreases very rapidly with distance, since force is inversely proportional to distance² . The Sun is much further away from the Moon than the Earth, so its gravitational a...

First we will rewrite y so it is written with a power: y=1/x²-2x-1=(x²-2x-1)^-1 Now let u=x²-2x-1 => du/dx = 2x -2 Writing y in terms of u: y=u^-1 =...

A 15% increase means that the £80,000 represents 115% of the original value.

Therefore what we do is:

£80,000=£125% divided by 125 

...