In the model 1 n left parenthesis upper y subscript i right parenthesis equals beta 0 plus beta 1 upper x subscript i plus mu subscript i1nyi=β0+β1xi+μi, the elasticity of upper e left parenthesis upper y vertical line upper x right parenthesise(y x) with respect to x is:

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

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.

Miss henderson wants to build a fence around a rectangular garden in her backyard in the scale drawing the perimeter of the garden is 14 in of the actual length of a b is 20 ft how many feet of fencing what you need