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Maths Puzzle
Numerical Ability
A top spins 200 revolutions/minute. Find the angular velocity in radians/second.
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book Other Question
Im supposed to write this in interval notation, but I do not know how.
2x^2-13x+15<(or equal to)0
Factor each expression completely:
-21 a x3y3 - 28x3y4 + 7x2y3z
xy + 3y -6x -18
6a2 + 4bx - 15a-10b
16a2 + 8a - 15