exam Maths Puzzle Numerical Ability

How do you prove that, given rhombus POMV and diagonal MO, that diangonal MO bisects the two angles that it stretches between?

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exam Other Question

Solve using the quadratic formula:

x^2 - 3x = 7x - 2
a researcher orders a broth 40.2% glucose for her lab. However, she needs a stronger broth, one that is 50.1% glucose. She has 16.1 liters of 57% glucose broth in the stock room. How much 50.1% glucose broth can she make?