exam Maths Puzzle Numerical Ability

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A bird species in danger of extinction has a population that is decreasing exponentially (A=Aoe^kt). Five years ago the population was at 1400 and to

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exam Other Question

find an algebraic expression for the length of a side of a square with area of
a+14ab+49b

1st a to the 6ht , 2nd a cubed, b to the 9th, last b to the 18th One of the scientists derived the following equation for Pn, the size of the kangaroo population at the end of the nth week of their stay (P0 = 51 000).
Pn = Pn-1 + a - b(2.5)n-1