Akite flying 20 ft. above the ground is attached to ta string 80ft. long. the string is being held by a person on the ground. find the angle between the string and the ground.

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

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