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A curve is given by the equation y=x^3-11x^2+28x; find the coordinates of the points where the curve touches the x-axis.

Since the equation has a cubic term, we can expect the curve to have certain properties: it should have three points where the graph touches the x-axis, two turning points, of which one should be a minimum a...
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Answered by Lui H. • Maths tutor
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A colourless liquid is tested with silver nitrate solution and produces a white precipitate and produces a brick red flame test result. Name the compound found in the colourless liquid

The silver nitrate test is a test for halide ions and the flame test is a test for metal ions, since they produced positive results you have an ionic substance. The result of a white precipitate is the posit...
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Answered by Lui H. • Chemistry tutor
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How to answer a source question?

A good answer to a source question is made up of three parts: context , content and usefulness .For the context , look at where the source came from and who wrote it. Make sure you don't just state what it h...
TD
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Solve 3x - 5 = 13

Algebra can be tricky to get a hold of but once you've worked through a few questions, you'll quickly get the hang of it!The aim of this question is to find x, that means the solution will look like this: x ...
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Answered by Tutor170840 D. • Maths tutor
10174 Views

what is co-dominance?

Co-dominance is when two alleles are expressed equally in the phenotype in the heterozygote. For example, plants that are homozygous for one allele may be red and plants that are homozygous for another allel...
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Answered by Pranathi Y. • Biology tutor
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