exam Maths Puzzle Numerical Ability

The length of a rectangle 3 cm greater than its width. If the area of the rectangle is 40 cm squared, find the lengh and width..

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exam Other Question

How many positive real numbers are there in:

f(x) = x^4 - 4x^3 + 6x^2 - 4x + 1

a. 1 or 0
b. 2 or 0
c. 4 or 2
d. 2 or 0 Find cos(a), given that sin(a) = 0 and cos(a) < 0.