Alfred was studying the mass of several planets. He found that Pluto's mass is 4.960 x 1027 kg, Neptune's is 1.028 x 1027 kg, Jupiter's is
1.894 x 1030 kg, and Earth's is 5.976 x 1027 kg. Order the planets from
greatest to least mass.

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove

Summary statistics given for independent simple random samples from two populations. use the pooled t-interval procedure to obtain specified confidence interval. x1=71.6, s1=3.9, n1=11, x2=67.9, s2=3.4, n2=9 determine a 99% confidence level.