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You need to remember that your essay is going to be read. What I mean by this is that your essay must be easy to understand and follow. This will make it easier for the examiner/teacher to give you those ...

a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving.

The equation linking Power, Time, and Energy is:P=W/tAnd here P= 200 W, and t= 1800 sHence, W= 200*1800 = 360,000 JNB: Remember here, the SI units are important.

For this we must expand the bracket:5(x+3)= 5x+15and then we rearrange for 'x':x<9

To simplify the expression we use B(rackets)I(nidices)D(ivision)M(ultiplication)A(ddition)S(subtraction) in this specific order.Hence, here the first thing we need to do is identify each element of BIDMAS...