Solve the quadratic equation and express all nonreal complex solutions in terms of i.5x2 + 3x = -3
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.A tank initially contains 100 gal of brine in which 40 lb of salt are dissolved. A brine containing 
of salt runs into the tank at the rate of 4 gal/min. The mixture is kept uniform by stirring and flows out of the tank at the rate of 3 gal/min. Find the solution to the differential equation that models the mixing process.
A. y = 2(100 + t) - 
B. y = 2(100 + t) - 
C. y = 4(50 + t) - 
D. y = 4(50 + t) - 
Solve the problem.If an object has a 60° clockwise rotation as one of its symmetries, then it must also have as a symmetry
A. a 90° clockwise rotation. B. a reflection. C. a translation. D. a 180° rotation. E. none of these
Provide an appropriate response.Decide whether the elimination method or the substitution method involves the least amount of work. Do not solve.x + 8y = 0x - 8y = 80
A. Elimination B. Substitution
Classify the system as either consistent or inconsistent.
A. Consistent B. Inconsistent