Aradio station will announce the winner of a contest when 3,200 callers have phoned the station. at 3: 00 p. m. 400 callers were counted. at 4: 00 p. m. 650 calls had been recorded. by 5: 00 p. m. 950 calls had come into the station, and by 6: 00 p. m. 1,300 calls had been counted. if the pattern continues, when will the radio station announce a winner?

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

43lbs of tomatos cost $387. how much would 41lbs cost

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)