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Find the gradient of y^2 +2xln(y) = x^2 at the point (1,1)

The key point in this question is noting that implicit differentiation is a very useful tool, although it is slightly different and looks much scarier than differentiating y = f(x).To do the question, a mix ...
MP
Answered by Mark P. • Maths tutor
4091 Views

A cuboid with a volume of 912cm^3 has the dimensions 4 cm, (x + 2) cm and (x + 9) cm. Find an equation in terms of x and solve to find the dimension.

912 = 4(x+2)(x+9)228 = (x+2)(x+9)228 = x 2 + 11x + 180 = x 2 + 11x -210using the quadratic formula we obtain x = -10 or x = 21As dimensions must be positive; x must equal 21Hence; the dimensions are 4, (21+2...
CR
Answered by Carys R. • Maths tutor
6328 Views

Why should we hire you for this job?

They want to know if you are the best candidate for the job. Explain why you are the applicant they should hire in a confident, focus way. Example: You should hire me because my experience and training compl...
BM
2258 Views

Explain one influence on the choice of suppliers for a large discount supermarket.

One factor that will influence the choice of supplier by a large discount supermarket will be the ability of the supplier to supply goods at a suitably low purchase cost to enable the supermarket chain to of...
BM
2957 Views

What is a Merit good? Give and example and explain..

Merit goods are goods that are under-consumed. They provide positive externalities and so the social benefit from consumption outweighs the private benefit. Market failure occurs when merit goods are under-c...
IW
4346 Views