The sequence an can be defined by the formula an=3(23)n. Which of the following is a recursive definition of the formula?
A. a1=2 an+1=2an3
B. a1=3 an+1=2an3
C. a1=2 an+1=an+23
D. a1=3 an+1=an+23

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?

Adiverr from the university of florida women’s swimming and diving team is competing in the ncaa zone b championships

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?