A pendulum is L meters long. The time, t, in seconds that it takes to swing back and forth once is given by t=2-/L. Suppose the pendulum takes  6.02 seconds to swing back and forth once. What is its length? Carry your intermediate computations to at least four decimal places, and round your answer to the nearest tenth.

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?