Both (x - 3)(x + 3) and (3 – x)(3+ x) contain a sum and a difference and have only 3 and x in each factor.
If each expression is rewritten in standard form, will the two expressions be the same?
Explain or show your reasoning.

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.

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer