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1. If 8(x)=3f(x)-8 and f(x)=10-r’, then which of the following is the value of 8(-2)?
(1) 34
(3) -186
(2) 46
(4) 10
then which of the
2. The domain of a function is given by {-4, 2,8). If the function is defined by y =
following values is a member of the range?
3
()
(3) 3
(2) -2
(4) 4
3. The depth, d, of snow accumulation during a snow storm was recorded with the results shown in the table
below. At what average rate did snow accumulate at over the interval 2 S157?
7
9

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Select the lengths in centimeters that would form a right triangle

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.