The width of a rectangle measures (5.9b+2.3) centimeters, and its length measures (3.3b+1.8) centimeters. Which expression represents the perimeter, in centimeters, of the rectangle? 4.1+9
8.2+18.4b
8.2b+5.1
16.4b+10.2

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 area of the unshaded square

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )