Which choices correctly describe reflections in the diagram? Check all that apply. The red triangle A is reflected across the X-axis onto triangle B.

The red triangle A is reflected across the Y-axis onto triangle D.

The blue triangle D is reflected across the X-axis on to triangle C

The blue triangle D is reflected across the line Y = X onto triangle B

The green triangle C is reflected across the line Y = -X onto triangle A

Which value would be a solution for x in the inequality 47-4x< 7

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.