Which transformations could have been performed on triangle jkl to form congruent triangle j ' k ' l '?
choose exactly two answers that are correct.

a.
triangle jkl was rotated 90° counterclockwise around the origin to form triangle jꞌkꞌlꞌ.

b.
triangle jkl was rotated 90° clockwise around point p to form triangle jꞌkꞌlꞌ.

c.
triangle jꞌkꞌlꞌ was reflected across the line x = minus 4 to form triangle jꞌꞌkꞌꞌlꞌꞌ.

d.
triangle jꞌkꞌlꞌ was reflected across the x-axis to form triangle jꞌꞌkꞌꞌlꞌꞌ.

Abottled water distributor wants to estimate the amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company. the water bottling company’s specifications state that the standard deviation of the amount of water is equal to 0.02 gallon. a random sample of 50 bottles is selected, and the sample mean amount of water per 1-gallon bottle is 0.995 gallon a. construct a 99% confidence interval estimate for the popula-tion mean amount of water included in a 1-gallon bottle. b. on the basis of these results, do you think that the distributor has a right to complain to the water bottling company? why? c. must you assume that the population amount of water per bottle is normally distributed here? explain. d. construct a 95% confidence interval estimate. how does this change your answer to (b)?