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To solve this, we need to factorise the expression (write as a product of two brackets). To do this we want to find to numbers that multiply to make +6 and add up to -5, for this case. These numb...

We know that the question is asking us to take the number 36 to the power of 0.5. By assumption 0.5 can be written as 1/2. To take 36 to the power of a 1/2 we take it to the root of the denominator and th...

zy=28 so y=28/z13=2z-3y13= 2z - (28 x 3)/z13=2z-84/zmultiply each side by z to give 13z = 2z²-84rearange for a quadratic2z²-13z-84=0solve by factorising(2z+8)(z-21/2)z= -4 0r 21/2sub...

As with many questions in economics A-level, I would start my answer with a paragraph explaining how under certain assumptions, an efficient allocation of resources can be achieved through the market mech...

Milgram (1963) conducted a social psychology experiment to investigate to what level individuals would be obedient to an authority figure. Participants arrived in pairs and he instructed them that the exp...