Find a formula for the nth term of the sequence.0, 2, 2, 2, 0, 2, 2, 2 (0, 2, 2, 2 repeated)
A. an = 1 + (-1)n(n-1)/2
B. an = 1 + (-1)n(n+1)(n+2)/6
C. an = 1 + (-1)n(n+1)/2
D. an = 1 + (-1)(n+1)(n + 2)/2
Answer: B
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Solve the problem.The pH of a patient's blood was measured periodically during one week, and the measured values were 7.36, 7.37, 7.45, 7.42, and 7.45. Find the standard deviation and variance for the data. Round the results to the nearest thousandth.
A. s = 0.086, v = 0.007 B. s = 0.038, v = 0.001 C. s = 0.001, v = 0.001 D. s = 0.098, v = 0.010
Find the sum of the infinite geometric series, if it exists.48 + 12 + 3 + 
+ . . .
A. - 16 B. 64 C. 63 D. Does not exist
Evaluate the expression or indicate that the root is not a real number.
A. 16
B. 4
C. 
D. 7
Find the domain of the function.h(x) = 
A. (-?, 0) ? (0, ?) B. (-?, 1) ? (1, ?) C. (-?, -8) ? (-8, 0) ? (0, 8) ? (8, ?) D. (-?, ?)