A study was commissioned to find the mean weight of the residents in certain town. The study found the mean weight to be 171 pounds with a margin of error of 10 pounds. Which of the following is a reasonable value for the true mean weight of the residents of the town? A) Between 151 & 171
B) Between 165 & 176
C) Between 181 & 201
D) Between 161 & 181

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212