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Explain how a coastline of headlands and bays forms and changes over time.

The coastline will be made of bands of hard and soft rock to begin with. As the waves erode the coastline, the soft rock will be eroded quicker. This results in the areas of softer rock to retreat, forming b...
SB
Answered by Sasha B. Geography tutor
30335 Views

x^2-x-12

To factorize this you need to find two numbers that have a sum of -1 and a product of -12. Start y finding the pairs of numbers the times to make -12; (-1,12), (-2,6), (-3,4), (1,-12), (3,-4), (2,-6). Next y...
GS
Answered by Gemma S. Maths tutor
3405 Views

Why do we use trigonometry and how to we get the sine, cosine, and tangent graphs?

The three trigonometric functions sine, cosine, and tangent are derived from looking at the ratios of side lengths in a right-angled triangle. (Triangle drawn and side lengths annotated H=hypotenuse, A=adjac...
LC
Answered by Louis C. Maths tutor
5315 Views

Factorise and solve 3x^2-x-10=0

Firstly I check that the equation is of the form ax 2 +bx+c=0 , here it is in such form as a=3 b=-1 c=-10. Because it is a quadratic equation, it can be factorised into 2 brackets. In each bracket there will...
MU
Answered by Matthew U. Maths tutor
4384 Views

Outline one philosophical argument for the existence of God.

Aquinas argued that the complexity of the world and the way that it functions is specific that it must have been made by a creator. In other words, there is such low likelihood that the world would be constr...
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Answered by Rivkah H. Philosophy tutor
1961 Views