Select the correct answer. Which equation represents the vertical line passing through (1.-9) O A. x = -9 B. X = 1 Oc y=-9 OD. y=1​

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8