exam Maths Puzzle Numerical Ability

Find the angle between two vectors (5,2) and (-2,5)

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exam Other Question

In the formula L=3/4 bxh, b=2, x=7, and h= 1/2, L equals what? Solve for x:


4x - (-1 + 3) = 2x – 1
2


Enter a fraction, NOT a decimal.
x =