1. identify the angles as complementary or supplementary and then find the value of x
a.) supplementary, 65 degrees
b.) complementary, 155 degrees
c.) complementary, 65 degrees
d.) supplementary, 155 degrees

2. which equation can be used to find the value of x in this figure
a.) 90 + x =106
b.) 106 - x =74
c.) 106 + x = 180
d.) none of these

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Write an equation for the function that includes the points (1,4/5) and (2,2/3)

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

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.