Find the indicated sum. Find the sum of the first 11 terms of the geometric sequence: 
, 
, 
, 
, 
, . . .
A. 
B. 409
C. 
D. 
Answer: C
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The following table shows the number A , in millions, of traffic accidents t years after 2004. t 0 1 3 4 E 10.92 10.75 10.65 10.24? ? A: Find the equation of the regression line.B: Plot the data along with the regression line.C: Explain in practical terms the meaning of the slope of the regression equation.D: What number of accidents does the regression line predict for 2009?
What will be an ideal response?
The given pattern continues. Write down the nth term of the sequence suggested by the pattern.-3, 9, -27, 81, . . .
A. an = (-1)n+1 3n+1 B. an = (-1)n 3n C. an = 3n+1 D. an = 3n
Solve the problem.In four rounds of a card game, you get scores of 1, -3, -8, and 6. What is your final score?
A. 18 B. -4 C. -18 D. 4
Solve the proportion.
= 
A. 48 B. 18 C. 6 D. 144