Solve, using the substitution method, and check.
A. (13, 12)
B. (8, -7)
C. (11, 4)
D. (8, 7)
E. (7, 6)
Answer: D
Mathematics
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Solve the system of linear equations.9x + 7y = 1012x - 2y = -6
A. (5, 8) B. (5, 9) C. No solution D. (4, 9)
Mathematics
Add or subtract. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics
Specify the center and radius of the circle.(x + 3)2 + (y - 5)2 = 81
A. center: (3, -5); radius: 81 B. center: (-3, 5); radius: 9 C. center: (-5, 3); radius: 81 D. center: (5, -3); radius: 9
Mathematics
Rewrite using the power and product rules. Assume all variables represent positive real numbers.logb yz8
A. logb y + 8 logb z B. 8 logb yz C. logb y + logb8z D. 8 logb y + 8 logb z
Mathematics