The perimeter of a rectangle is about 16.2 cm if you double the width of the rectangle the perimeter is about 21.9 cm find the dimensions of the smaller rectangle round the given values to the nearest integer use the rounded values to write and solve a system of equations to find
the length and width of the rectangle

Suppose your sat score is 2040. a college with an average sat score for admintted students of which of these would most likely be your best option?

Arandom sample of 15 observations is used to estimate the population mean. the sample mean and the standard deviation are calculated as 172 and 63, respectively. assume that the population is normally distributed. a. with 99 confidence, what is the margin of error for the estimation of the population mean? b. construct the 99% confidence interval for the population mean. c. construct the 95% confidence interval for the population mean. d. construct the 83% confidence interval for the population mean. hint: you need to use excel function =t.inv.2t to find the value of t for the interval calculation.

A33.33 percent decrease followed by a 50% increase. greater or larger that original amount?