exam Maths Puzzle Numerical Ability

solve for n. 1/8n + 6 = -5/8(n-16)

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exam Other Question

prove that k(25k-8)>0

Hence find the set of values of k

Write down the values of k for which the equation x^2 +5kx + 2k = 0 has equal roots
In a plane, what is the matrix of a stretch S by factor 5 in the x2-direction?

Calculate the composition of S FOLLOWED by a rotation through angle theta

Calculate the composi