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Differentiate y= (3x^2+2x-6)^8

This is an example of where we must use the chain rule: Firstly as with simpler differentiation we multiply the function by the power then subtract 1 from the power to get: 8(3x^2+2x-6)^7 Then we must also m...
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Answered by Ollie T. • Maths tutor
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What is the nature vs nurture debate in child language acquisition?

The nature debate is that children learn naturally and that there is something cognitive which allows them to learn language. For example, the children of deaf parents who can talk without hearing others. Th...
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Explain the processes of Physical Coastal erosion and give examples of the land-forms it can produce

Wave pounding is an erosion process which involves the force of the wave hitting rock and wearing it down, this particularly occurs in soft rock such as sandstone. Hydraulic action may also work with this to...
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Answered by Megan B. • Geography tutor
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What is the power dissipated by a 12 Ohm resistor when 2A of current run through it?

We know P=IV and that V=IR. Therefore as we are only given I and R in the question we can make the substitution for V so that P=I 2 R. By plugging in the numbers we get: P=2 2 x 12= 48W (W=Watts, unit of Power)
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Answered by Ollie T. • Physics tutor
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expand y=(x+1)(x+2) and find what are the coordinates for x intercepts?

use the smile technique
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Answered by Sen H. • Maths tutor
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