Find the nth term {an} of the geometric sequence. When given, r is the common ratio.5, -10, 20, -40, 80, ...
A. an = 5 ? (-2)n
B. an = 5 ? (-2)n
C. an = 5 ? (-2)n-1
D. an = a1 - 2n
Answer: C
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Use the Fixed-Point Algorithm with x1 as indicated to solve the equation to five decimal places.x = 
; x1 = 1
A. 2.42899 B. 2.53715 C. 2.62679 D. No solution
Suppose that ln 2 = a and ln 5 = b. Use properties of logarithms to write each logarithm in terms of a and b.ln 10
A. ab B. ln a + ln b C. a + b D. a - b
Answer the question.An opinion survey is conducted to determine how Americans 60 years and older feel about the new budget passed by Congress. What is the population?
A. All Americans 60 yrs or older B. All 60-year-old persons living in Washington, D.C. C. All 60-year-old men D. All Americans living in the U.S.A.
Round to the indicated place value.Round to the nearest thousandth: 0.431112
A. 0.44 B. 0.43 C. 0.4311 D. 0.431