Provide an appropriate response.The golden ratio divides a line into how many pieces?
A. four
B. one
C. three
D. two
Answer: D
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Simplify.
A. k - 6
B. 
C. 
D. 
Refer to a normal distribution described by the following figure. The mean is ? and the standard deviation is ?.
The standard deviation ? =
A. 8 B. 4 C. 10 D. 2 E. none of these
The graph of a function is given. Use the graph to find the indicated limit and function value, or state that the limit or function value does not exist.a. 
f(x)
b. f(-2)
A. a. 
f(x) = -2
b. f(-2) = -1
B. a. 
f(x) does not exist
b. f(-2) = -1
C. a. 
f(x) = -2
b. f(-2) = -2
D. a. 
f(x) = -1
b. f(-2) does not exist
The table shows the number of fiber-optic cable connections to homes in the U.S. from 2000 to 2004 (
represents 2000).Use technology to obtain the linear regression line, with regression coefficients rounded to two decimal places.
Year t01234Connections c (Thousands)0102565150?
A. ?
B. ?
C. ?
D. ?
E. ?