An article contained the following observations on degree of polymerization for paper specimens for which viscosity times concentration fell in a certain middle range: 418 420 422 423 425 429 430 434 437 438 445 446 448 451 455 461 465.Calculate a two-sided 95% confidence interval for true average degree of polymerization. (Round your answers to two decimal places.)

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Julie begins counting backwards from 1000 by 2’s and at the same time tony begins counting forward from 100 by 3’s.   if they count at the same rate, what number will they say at the same time?

In the diagram below de and ed are tangent to 0 which expression gives the measure of def