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y=e^(2x) - x^3. Find dy/dx. (please note this is "e to the power of 2x, minus x cubed")

The rules to know are 1) when differentiating e to the power of x... be it 2x or 100x... you bring down the number in front of x, and leave the power as it is. in our case e^(2x) goes to 2e^(2x). When differ...
TM
Answered by Toby M. • Maths tutor
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Solve the following for X and Y: 2y+4x=14 and x-y=-1

Firstly, Take equation 1 (2y+4x=14) and divide it all by 2. This gives y+2x=7. Next make Y the 'subject' AKA put it on it's own. To do this Subtract 2x from both sides. Now we have Y=7-2X. Here you can see Y...
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Answered by Toby M. • Maths tutor
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What is the difference between species diversity and species evenness ?

Species richness is the number of species found in an area- you simply count the number of different species. Species evenness is how evenly spread the population is across the species in an area- if you hav...
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Answered by Rebecca N. • Biology tutor
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How do I write a news report?

To grab your reader's attention, you should begin with a catchy headline (although this may be given to you in the exam). Then your first paragraph should be a quick summary of the event that you're going to...
VH
Answered by Victoria H. • English tutor
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How do I analyse a quotation effectively?

To analyse a quote, you should first of all ask yourself 'what is the quotation about?' It seems a simple step but it's something you should always include. Then ask yourself, 'are there any literary techniq...
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Answered by Victoria H. • English tutor
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