A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 55% salt and Solution B is 80% salt. She wants to obtain 180 ounces of a mixture that is 65% salt. How many ounces of each solution should she use?

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.

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

If the value of cos330°is√3/2 then find cos 165°.