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Describe and explain the properties of graphene

Graphene has strong covalent bonds between the carbon molecules giving graphene properties such as a high melting point and making it very strong.Due to the delocalised electrons that are free to move across...
HC
Answered by Harry C. • Chemistry tutor
5469 Views

How do you convert fractions to decimals? For example. Convert 13/20 to a decimal.

One way to convert fractions to a decimal is to divide the top number by the bottom. However with fractions like this, it is not easy to do without a calculator. So, you must use another method. Since dividi...
CS
Answered by Claudia S. • Maths tutor
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f(x) = 2x^3+6x^2-18x+1. For which values of x is f(x) an increasing function?

For f(x) to be an increasing function at x, the derivative of f(x) must be greater than 0. So, the answer to this question will be revealed by solving the equation f'(x) > 0 for x.By differentiating the t...
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Jerry looks up to his Brother John. John has started shop lifting and is getting away with it. Explain, referring to social learning theory, how this could be detrimental to Jerry.

Social Learning theory was established by Bandura. It suggests that people learn through social interactions such as observation and imitation.In relation to Jerry and John, Jerry is observing a negative beh...
JT
Answered by Jazmyn T. • Psychology tutor
1866 Views

Expand these brackets 3x(x - 2)

3x(x-2)You do 3x times everything in the bracket so 3x * x = 3x 2 and 3x * -2 = -6x (negative * a postive = a negative)Then combine the two to give you 3x 2 - 6x
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Answered by Olivia F. • Maths tutor
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