In this diagram, two perpendicular lines and two rays intersect at point T. What is the measure, in degrees, of angle QTR? A. 24
B. 28
C. 32
D. 48

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl