Provide an appropriate response.Solve the system of equation using the addition method:x - 2y = -7y = 2x - 1
A. x = -1, y = 3
B. x = 
, y = 4
C. x = 3, y = 5
D. x = 2, y = 4
Answer: C
Mathematics
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Solve.Andy wants to buy a refrigerator for $699, a stove for $459, and a dishwasher for $349. Round each cost to the nearest hundred to estimate the total cost.
A. $1400 B. $1600 C. $1300 D. $1500
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Solve the equation by completing the square.-x2 + 2x = -1
A. {1 ± 
}
B. 
C. {-1 ± 
}
D. {1, 2}
Mathematics
The two dimensions of business level strategy are
A. supply and demand. B. competitive scope and cost leadership. C. narrow or broad target market. D. competitive advantage and competitive scope.
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Without graphing, determine whether the graph of the quadratic function opens up or opens down.f(x) = x2 - 8
A. opens up B. opens down
Mathematics