Solve the system by substitution. If the system is inconsistent or dependent, say so.
A. (1, 0)
B. (1, -2)
C. (0, -1)
D. empty set solution; inconsistent system
Answer: C
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Use the ordinary annuity formula to determine the accumulated amount in the annuity. Round the answer to the nearest cent.$5000 is invested annually for 9 years at 4.6% compounded annually
A. $55,232.95 B. $54,232.95 C. $53,732.95 D. $53,232.95
Solve.A rock falls from a tower that is 288 ft high. As it is falling, its height is given by the function 
How many seconds will it take for the rock to hit the ground (h=0)?
A. 17 sec B. 17.6 sec C. 5184 sec D. 4.2 sec
Solve the equation by completing the square.x2 + 
x + 
= 0
A. {- 
, - 
}
B. {- 
, 
}
C. {
, - 
}
D. {
, 
}
Solve the problem.The total sales in dollars of some small businesses fluctuates according to the equation S = A + B sin ?x/6, where x is the time in months, with x = 1 corresponding to January, A = 6700, and 
Determine the month with the greatest total sales and give the sales in that month.
A. March; $9500 B. September; $3900 C. December; $9500 D. June; $6700