2math

1. in 2010, a city's population was 83,075 and it was declining at a rate of 1.04% each year. which is the best prediction for when the city's population will be first below 62,000?

a) 2026 (my answer)
b) 2029
c) 2034
d) 2037

2. membership in a science club is expected to grow by about 6% per month. currently, there are 140 members in the club. in about how many hours months will memberships reach 300 members?

a) 5 months
b) 8 months (my answer)
c) 13 months
d) 15 months

***note: can someone tell me if it's right or wrong. if wrong can i get an explanation to the problem.

Listed below are the measured radiation absorption rates? (in w/kg) corresponding to 11 cell phones. use the given data to construct a no plot and identify the 5- number summary

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Name and describe the three most important measures of central tendency. choose the correct answer below. a. the mean, sample size, and mode are the most important measures of central tendency. the mean of a data set is the sum of the observations divided by the middle value in its ordered list. the sample size of a data set is the number of observations. the mode of a data set is its highest value in its ordered list. b. the sample size, median, and mode are the most important measures of central tendency. the sample size of a data set is the difference between the highest value and lowest value in its ordered list. the median of a data set is its most frequently occurring value. the mode of a data set is sum of the observations divided by the number of observations. c. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is the product of the observations divided by the number of observations. the median of a data set is the lowest value in its ordered list. the mode of a data set is its least frequently occurring value. d. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is its arithmetic average. the median of a data set is the middle value in its ordered list. the mode of a data set is its most frequently occurring value.