Search over 10,000 free study notes

Waterfalls are ususally found in the upper section of the river course, this is because the bedrock in upper sections is of different degrees of hardness, composed of both hard and soft rock. The main pro...

The first thing we try to do is factorise the numerator and denominator. Let's start with the numerator. We can take a 7 out of the bracket to leave us with 7( x² + 2x ) on the numerator. But w...

2x²+21x+40=0factors of 40=1&40, 2&20, 4&10, 5&85 & 8 are correct factors as 5 + 2*8 = 21(2x+5)(x+8)=0So, x = -8 & -2.5

The subjunctive is a form of a verb that is used to show a level of feeling, or doubt; it is commonly used to discuss whether something will happen or not. In French, the...

A control rod is a device that can be used to absorb neutrons released from nuclear fission. They can be used to slow down or completely stop a reaction by lowering them or raising them into the reactor c...