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Maths Puzzle
Numerical Ability
Is negative four to the negative one power gaoing to give me a positive four?
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book Other Question
The period of a simple pendulum is directly proportional to the
square root of its length. If a pendulum has a length of 6 feet and a
period of 2 seconds, to what length should it be shortened to achieve
a 1 second period?
5x^3-36x^2+189=0
solve for x
please show work