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How would you differentiate x^x?

To start off with, we have the expression y = x^x and we want to differentiate it. A clever way to do this would be to first remember implicit differentiation and start by taking the natural logarithm of bot...
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Express x^2 +10x -3 in the form (x + p)^2 + q

x 2 +10x-3=(x+5) 2 -25-3= (x+5) 2 -28
CT
Answered by Carmen T. • Maths tutor
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Why do ionic compounds conduct electricity when molten or in solution, but not when solid?

Substances can conduct electricity if there is a way for charge to flow through that substance. For a substance to conduct electricity, it needs to contain some sort of charge carrier - this could be an elec...
JQ
Answered by James Q. • Chemistry tutor
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3/5 of a number is 162. Work out the number.

If we call the unknown number 'x' we can put it in to an equation to work it out as we known 5/3 of the number is 162.5x/3 = 162then times each side of the equals symbol by 5 to get (3x/5) 5 = 162 35which is...
LM
Answered by Lucy M. • Maths tutor
14372 Views

what is a catalyst

A substance that increases the rate of a reaction without having been used up itself in the reaction. They function by providing a lower activation energy for the reaction to begin, which is a type of thresh...
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Answered by Samuel C. • Chemistry tutor
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