Which equations are true for the values of x, y, and z? Select three options.

2 lines intersect to form 4 angles. Clockwise, from top, the angles are: 65 degrees, x, y, z.
x degrees + 65 degrees = 180 degrees
x degrees = z degrees
y degrees = 65 degrees
x degrees= 65 degrees
x degrees + y degrees + z degrees = 115 degrees

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

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.