Which is the ordered pair that represents a point whose x-coordinate is the opposite of its y-coordinate and is located in Quadrant II? (-1, 1)
(-1, 1)

(-2, -2)
(-2, -2)

(3, 3)
(3, 3)

(4, -4)
(4, -4)

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a. m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

Find the nonpermissible replacement for binthis expression. b2/5b +5