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Evaluate the impact of the increase in the number of public sector employees on the UK economy (12)

An increase in the number of public sector employees is likely to have two main benefits. DIAGRAM SHOWING AGGREGATE SUPPLY AND AGGREGATE DEMAND INCREASING, SIMULTANEOUSLY SHOWING AVERAGE PRICES AND REAL OUTP...
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Answered by Matthew M. • Economics tutor
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Find all the cube roots of 1

Let z be a cube root of 1 such that: z^3 = 1 z^3 - 1 = 0 Factorise: (z-1)(z^2 + z + 1) = 0 Then, z=1, the real root, or: z^2 + z + 1 = 0 with z not equal to 1 Use quadratic equation: z = (-1 +- sqrt(1-4))/2 ...
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Find the four roots of the equation z^4 = + 8(sqrt(3) + i), in the form z = r*e^(i*theta). Draw the roots on an argand diagram.

This is a maths problem, which I believe is best taught by live demonstration and explanation while constantly promtpting the student to suggest further steps if they are able. If they are not, then you shou...
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How are bacteria genetically modified for human benefit?

First of all, the concept of genetic modification needs to be understood. Proteins are coded for by genes in the DNA of an organism, with each gene coding for a different protein. We utilise the fact that di...
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Answered by Declan P. • Biology tutor
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If water is trapped between two planes on a train, and the train decelerates at 4ms^-2. What angle does the surface of the water make with the horizontal?

Draw a diagram of forces on a single particle at surface of water. Water is stationary in reference to train, thus when including decelerating force, resulting force is zero. Balance horrizontal and vertical...
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Answered by Oliver S. • PAT tutor
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