The surface area of a cube may be found using the formula A=6s2. What is the edge length of a cube with a surface area of 81 cm2?

Round your answer to the nearest tenth.

What is 1/3x5 on anuber line what does it look like on a number line

If a + b = 4, what is the value of |4 – a| + |4 – b|?

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.