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If a number is to the power of 2/3, you should think of it as to the power of 1/3 (so CUBE-rooted), and then being to the power of 2 (so squared). So here, the cube root of 64 is 4, because 4x4x4=64. Then yo...

The easy way to remember these uses the acronym SOH-CAH-TOA The function to use depends on the sides of the triangle you know in the problem. With right angled triangles each side has a name: the hypotenuse ...

The mixture of cryolite and aluminium oxide has a lower melting point than pure aluminium oxide. This means a lower amount of energy is required to establish effective conditions for electrolysis and thus ma...

Pythagoras theorum is used to identify the lengths of any side on a right angle triangle. The theorem is as follows: a 2 + b 2 = c 2 We assume that the hypotenuse (side opposite the right angle) is C. Theref...

Ser is used to talk about permanent or lasting attributes DOCTOR is a good acronym to use: D escriptions, O ccupations, C haracteristics, T ime, O rigin, and R elationships Estar is used to indicate temporar...