Kaitlin , ryan and miguel sent a total of 79 messages during the weekend. Kaitlin sent 6 fewer messages than miguel. Ryan sent 3 times as many messages as miguel. How many messages did they each send

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables