Suppose a company must pay a liability of 1000 in 2 years. The company invests 620.16 in a one year zero coupon bond and 385.21 in a 4 year zero coupon bond. The effective rate of interest is io = 7.5%. (Equalities in a) and b) may differ due to the rounding of 620.16 and 385.21.) a) Then PA(io) = 620.16v + 385.21v 1000v² = PL(io). Find PA(io) = PL(io).

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

3.17 scores on stats final. below are final exam scores of 20 introductory statistics students. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 57, 66, 69, 71, 72, 73, 74, 77, 78, 78, 79, 79, 81, 81, 82, 83, 83, 88, 89, 94 (a) the mean score is 77.7 points. with a standard deviation of 8.44 points. use this information to determine if the scores approximately follow the 68-95-99.7% rule. (b) do these data appear to follow a normal distribution? explain your reasoning using the graphs provided below.

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers