Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio, r, are given.a = -5; r = -5
A. a5 = -3125; an = -5 ? (-5)n-1
B. a5 = -3125; an = -5 ? (-5)n
C. a5 = 625; an = -5 ? (-5)n
D. a5 = 625; an = -5 ? (-5)n-1
Answer: A
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,
y = 4,
x = 2; revolve about the line 
A. 
?
B. 
?
C. 
?
D. 
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Evaluate to four decimal places using a calculator.e-0.92
A. 0.3985 B. 0.8464 C. -2.5008 D. -0.8464
Perform the indicated computation. Write the answer in scientific notation.
A. 8.4 × 109 B. 8.4 × 103 C. 4.2 × 109 D. 4.2 × 103
?The average typing speed N (in words per minute) after t weeks of lessons is modeled by 
. Find the rate at which the typing speed is changing when 
weeks. Round your answer to two decimal places.
?
A. ?1.51 words/min/week B. ?2.15 words/min/week C. ?2.51 words/min/week D. ?4.38 words/min/week E. ?5.04 words/min/week