Mathematics, 06.05.2020 19:07 VinTAEge
Acid rain caused by reaction of air pollutants with rainwater appears to be a growing problem in the northeastern United States. Pure rain falling through clean air registers a pH value 5.7(pH is measure of acidity (0 is acid; 14 is alkaline). Suppose water samples from 40 rainfalls are analyzed for pH, and x (bar) and s are equal to 3.7 and .5 respectively. For a 99% confidence Interval for the mean pH in rainfall, what is the width of the interval?
Answers: 2
Mathematics, 21.06.2019 17:00
This figure consists of a rectangle and semicircle. what is the perimeter of this figure use 3.14 for pi 60.84m 72.84m 79.68m 98.52m
Answers: 2
Mathematics, 21.06.2019 18:00
Big boi and travis scott are performing at the super bowl. travis scott is 62 years younger than twice big boi’s age. the sum of their ages is 70 years old. use b to represent big boi’s age. write and solve an equation.
Answers: 1
Mathematics, 21.06.2019 20:00
Given the graphed function below which of the following orders pairs are found on the inverse function
Answers: 1
Mathematics, 21.06.2019 21:00
Atriangular field has sides of lengths 21, 39, and 41 yd. find the largest angle. (round your answer to the nearest degree.)
Answers: 1
Acid rain caused by reaction of air pollutants with rainwater appears to be a growing problem in the...
Mathematics, 04.07.2019 03:00
Health, 04.07.2019 03:00
English, 04.07.2019 03:00
History, 04.07.2019 03:00
Mathematics, 04.07.2019 03:00
Mathematics, 04.07.2019 03:00
Mathematics, 04.07.2019 03:00
Mathematics, 04.07.2019 03:00
History, 04.07.2019 03:00
Mathematics, 04.07.2019 03:00
Biology, 04.07.2019 03:00