Find the arc length of a sector with a central angle of 225 and a radius of 4.2 meters. is it a) 4pi b) 4pi/5 c) 5pi/5 d) 8pi ? Thank...

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Find the arc length of a sector with a central angle of 225 and a radius of 4.2 meters. is it a) 4pi b) 4pi/5 c) 5pi/5 d) 8pi ? Thank...

Simplify (x2 +16x+64)/(-10x)/(x+8)/(5x) It should look like this... x2+16x+64 -10x x+8 ...

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Do you use Permutation or Combination?

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