Perform the following operation.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: B
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Solve.The following data are the number of social network friends for nine random users.76?91?123?63?106?211?84?111?46(a) Find the mean, median, and mode for the data. Round the value of the mean to the nearest whole number, if necessary.(b) A new user opens a social network account starting with 19 friends. Add this data to the data set and find the new mean, median, and mode for the data. Round the value of the mean to the nearest whole number, if necessary.
A. (a) mean: 101, median: 91, mode: no mode; (b) mean: 93, median: 101, mode: no mode B. (a) mean: 93, median: 111, mode: 111; (b) mean: 85, median: 101, mode: 111 C. (a) mean: 93, median: 111, mode: 111; (b) mean: 91, median: 111, mode: 111 D. (a) mean: 101, median: 91, mode: no mode; (b) mean: 101, median: 111, mode: no mode
The graph of 
is given in the figure. State whether 
or 
A. a > 0 B. a < 0
Use factoring to find the zeros of the quadratic function. List the x-intercepts of the graph of the function.f(x) = 3x2 - 4x - 7
A. x = 
, x = -1
B. x = 
, x = 1
C. x = 
, x = 0
D. x = 
, x = -1
Find and simplify the difference quotient of f, 
, for the function.f(x) = 
A. 
B. 
C. 0
D. 