Find the nth term of the geometric sequence.8, -16, 32, -64, 128
A. an = a1 - 2n
B. an = 8 ? (-2)n
C. an = 8 ? (-2)n
D. an = 8 ? (-2)n-1
Answer: D
Mathematics
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Sketch the graph of the quadratic function.f(x) = 
(x + 2)2 + 4
A. 
B. 
C. 
D. 
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Simplify the complex fraction.
A. 
B. 
C. 
D. 
Mathematics
Find the mean for the list of numbers.Ages of patients (in years) in a clinic: 18, 4, 25, 18Round answer to the nearest whole number if necessary.
A. 4 year(s) B. 18 years C. 16 years D. 15 years
Mathematics
Use a table of square roots or a calculator to approximate to the nearest thousandth.
A. 2.825 B. 2.828 C. 2.833 D. 8.000
Mathematics