Search over 10,000 free study notes

The separation of powers is where the political system is divided into three 'branches' and power is divided between these branches. These branches are: the legislature (the body that makes laws - in the ...

Waterfalls form where a river is flowing over hard rock lying on soft rock. The soft rock is eroded faster, so there is a step in the river which deepens over time. It is eroded by hydraulic action and ab...

This effect is called diffraction. This occurs when waves spread over obstacles or through gaps.

From previous question y=2(x+2)²-1Minimum would be when (x+2)² is at it's smallest value, in this case when (x+2)=0 since any other value squared would be greater than 0. This occurs...

2x²+8x+7=2(x²+4)+7=2((x+2)²-4)+7=2(x+2)²-8+7=2(x+2)²-1A=2, B=2, C=-1