PLEASE HELP!

Which of the following is a polynomial?

Triangle dog was rotated to create triangle d'o'g'. describe the transformation using details and degrees.

What is the definition of a surd.give an example.

Arandom sample of 45 observations results in a sample mean of 68. the population standard deviation is known to be 23 a. compute the margin of error at a 959% confidence interval. b. compute the 95% confidence interval for the population mean c. compute the 90% confidence interval for the population mean. d. compute the 75% confidence interval for the population mean