Solve the problem.A power outage affected all homes and businesses within a 4 mi radius of the power station. If the power station is located 4 mi west and 4 mi north of the center of town, find an equation of the circle consisting of the furthest points from the station affected by the power outage.
A. (x + 4)2 + (y + 4)2 = 16
B. (x + 4)2 + (y - 4)2 = 16
C. (x - 4)2 + (y - 4)2 = 16
D. (x - 4)2 + (y + 4)2 = 16
Answer: B
Mathematics
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Solve the given differential equation.
+ 9
+ 20y = -15
A. y = c1e-5x + c2e-4x + 
B. y = c1e5x + c2e4x - 
C. y = c1e-5x + c2e-4x
D. y = c1e-5x + c2e-4x - 
Mathematics
Provide an appropriate response.Write the set x ? 3 using interval notation.
A. (-?, 3] B. (3, ?) C. (-?, 3) D. [3, ?
Mathematics
Solve the rational equation.
= 
+ 
A. {-3}
B. 
C. {3}
D. 
Mathematics
Factor.x2 - 11x + 28
A. (x + 4)(x - 7) B. (x - 4)(x - 7) C. (x + 4)(x + 7) D. (x - 4)(x + 7)
Mathematics