Solve and check.x2 - 81 = 0
A. -9, 0, 9
B. -9, 9
C. -9
D. 9
Answer: B
Mathematics
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Solve the initial value problem.2 
- 4xy = 8x; y(0) = 11
A. y = 2 + 11ex2 B. y = -2 + 13e-x2 C. y = -2 + 13ex2 D. y = -1 + 12ex2
Mathematics
Graph.49x2 + 9y2 = 441
A. 
B. 
C. 
D. 
Mathematics
Identify the number as prime, composite, or unit.374
A. Composite B. Unit C. Prime
Mathematics
Factor.2n2 + 5n - 63
A. (2n - 9)(9 - 2n) B. (2n - 72)(2n - 9) C. (2n - 9)(n + 7) D. (2n - 9)(n - 7)
Mathematics