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What is the best temerature to set your thermostat in cold weather? How far away is the nearest black hole? 1200 light years or 3000 light years? i'm getting conflicted answers? How do you know if a sample is completely wrong ? For a 95 percent confidence interval? Write a recursive formula for the arithmetic sequence (a(n)=(2,7/2,5,13/2...)? A fullback of mass 100 kg traveling at 18.6 m/s collides with another player and comes to rest in 1.36 s. What was the force of the impact?