Johanna buys two poster frames that have the same area, but different shapes. one is a rectangular frame with a width of 40 inches and a length of 30 inches. the other frame is square. would a poster with dimensions of 36 in x 36 in fit in the square frame? show working/ how you arrived at your answer.

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

If $740 is invested at an interest rate of 11% per year and is compounded continuously, how much will the investment be worth in 7 years? use the continuous compound interest formula a = pert.

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.