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First start with 2xy=-4, rearrange to find in terms of x, x=-2/y. Substitute this into the other equation (3x-5=-4y), producing -6/y -5 =-4y.Times every term by -y resulting in 6+5y=4y² .Rearr...

At first the chain rule can seem quite daunting and convoluted but with a few examples over the course of this lesson, it will seem simpler and more intuitive.
The chain rule is used where the equat...

Dependent on verb. There are 3 most common types of verbs in French, ending in -er, -ir, or -re. Kick off the endings and replace with...-Example verbs: -er: jouer (to play), crier (to sh...

On the flat straight road, the cyclist will travel at a constant speed if the work done by the cyclist is equal to the sum of the energy lost to air resistance by the cyclist and the frictional losses wit...

[The Subject & Level bar would not let me choose A Level for some reason, so the question and answer I am providing is for an A Level student, despite the fact it is under the heading English Literatu...