Solve the system by the substitution method.
+ y2 = 36
A. (0, -6), (
, 5)
B. (0, 6), (- 
, 5)
C. (- 
, 5), (0, -6), (
, 5)
D. (0, 6), (
, 5)
Answer: C
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Solve the inequality. Graph the solution set and write the solution set in set-builder notation.x2 + 6x + 9 > 0
A. {x 
B. {x 
C. {x 
D. {x 
Solve the system.
A. (9, 0)
B. inconsistent (no solution)
C. y = - 
+ 3, where x is any real number
D. (0, 0)
The populations P (in thousands) of Horry County, South Carolina from 1970 through 2007 can be modeled by 
where t represents the year, with 
corresponding to 1970. Use the model to complete the table. Round your answer to two decimal
places. Year 1970 1980 1990 2000 2007 Population A. ?
| Year | 1970 | 1980 | 1990 | 2000 | 2007 |
| Population | 78.70 | 108.74 | 148.56 | 201.35 | 248.24 |
B. ?
| Year | 1970 | 1980 | 1990 | 2000 | 2007 |
| Population | 78.70 | 118.74 | 148.56 | 258.24 | 201.35 |
C. ?78.70
| Year | 1970 | 1980 | 1990 | 2000 | 2007 |
| Population | 78.70 | 158.56 | 148.56 | 201.35 | 248.24 |
D. ?
| Year | 1970 | 1980 | 1990 | 2000 | 2007 |
| Population | 78.70 | 211.35 | 158.56 | 201.35 | 248.24 |
E. ?
| Year | 1970 | 1980 | 1990 | 2000 | 2007 |
| Population | 78.70 | 258.24 | 258.24 | 211.35 | 148.56 |
Solve.The textbook for a history class costs $55. There are 31 students in the class. Find the total cost of the history books for the class.
A. $1,705 B. $1,650 C. $86 D. $1,674