The information below represents which absolute value equation? ( need answer )

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1

What is the total surface area of this square pyramid?

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.