Search our library of homework questions

Top answers

All subjects

All levels

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).

Answered by Toby M. • Maths tutor

8165 Views

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 se...

Answered by Toby M. • Maths tutor

5203 Views

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 ...

Answered by Rebecca N. • Biology tutor

22170 Views

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...

Answered by Victoria H. • English tutor

3905 Views

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 tech...

Answered by Victoria H. • English tutor

5216 Views