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What does dy/dx represent?

dy/dx represents the gradient of a curve. The d represents an infinitesimally small range so it is essentially as though you are doing change in y over change in x like you would for a y = mx +c graph ...

MD
Answered by Madeleine D. • Maths tutor
38650 Views

Is there a way to find out a nouns gender?

Although it may seem that the gender of French nouns is random and you have to memorise each, there is a simple way of using the word's ending to gauge it's gender.
Masculine Endings:

CB
Answered by Caitlin B. • Economics tutor
3333 Views

How do I do integration by parts?

Say we have an equation with the product of two subjects in the form f(x) = u(x)v(x).

Differentiating is simple, we would just multiply the differential*...

DA
Answered by Doug A. • Maths tutor
4920 Views

How does MRI work?

MRI stands for magnetic resonance imaging and uses the application of a magnetic field and radio frequency photons to manipulate the spin state of protons (hydrogen nuclei). Hydrogen is one of the most...

SV
Answered by Sebastian V. • Biology tutor
9592 Views

How do I calculate the percentage by mass of a metal within an impure substance?

For this question we will look at Sodium Sulphite (Na2SO3) and its titration against Potassium Permanganate (KMnO4). This requires acidic conditions.

...
SV
14168 Views

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