Elio and denise solved the following equation (-3n-8)(2n+4)=0 which work is correct

Which graph corresponds to the function f(x) = x2 + 4x – 1?

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.

State one method by which you can recognize a perfect square trinomial.