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Within the limited 40 minute timeframe, the most important feature to include in your essay is a coherent chain of thought, usually in the form of a thesis statement. Alongside the use of a skeletal struc...

To solve this we must use the chain rule which is dy/dt * dt/dx. Firstly, we differentiate dy/dt. For this we must use the quotient rule, this gives us dy/dt=(9te^3t - 3e^3t)/9t^2. Now for dx/dt, by subst...

Student should know complete combustion produces CO₂ and H₂O Once products are known, equation can be balanced as:  CH₄ + 2O₂ ---> CO₂ + 2H_2<...

Simple definition: Electronegativity is the tendency of an atom to attract a bonding air of electrons to itself

Student should factorise equation to (x-2)(x+3) = 0 This gives roots of 2 and -3