Jack needs at least square feet of paper for an art project. He can choose from the two pieces of paper shown in the picture below.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g