Solve the problem.Find the sum of the first 5 terms of the geometric sequence with first term 1 and common ratio -3.
A. 61
B. -61
C. -121
D. 121
Answer: A
Mathematics
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Write a general term an for the sequence. Assume that n begins with 1.
, 
, 
, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 
Mathematics
Solve the equation by factoring.x2 - 7x - 18 = 0
A. {-2, 9} B. {-2, -9} C. {2, 9} D. {2, -9}
Mathematics
Evaluate the expression for the given values of the variables, if possible.-11x
x = -17
A. -187 B. -198 C. 198 D. 187
Mathematics
Solve the problem.The national debt of a small country is $51,120,000,000 and the population is 5,680,000. What is the amount of debt per person? Write the answer in standard notation.
A. $900 B. $9000 C. $290,361,600 D. $90,000
Mathematics