Solve the system by the best method. Use set notation to express the solution set.
A. {(1, -4)}
B. {(-1, -4)}
C. {(-1, 4)}
D. {(1, 4)}
Answer: A
Mathematics
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Find the particular solution to the given differential equation that satisfies the given conditions.9D2y + 16y = 0; y = 0 and Dy = 3 when x = 
?
A. y = -
cos 
x
B. y = - 
sin 
x
C. y = 
cos 
x
D. y = C1 sin 
x + C2 cos 
x
Mathematics
Provide an appropriate response.Find the discriminant of the equation: 10 + 4x - x2 = 0
A. The discriminant value is 24i. B. The discriminant value is -24. C. The discriminant value is 56. D. The discriminant value is 48.
Mathematics
Solve the equation by completing the square.z2 + 16z + 43 = 0
A. 8 + 
B. -16+ 
C. 8 ± 
D. 8 ± 
Mathematics
Evaluate the sum.
6k
A. -55,987 B. 55,985 C. 39,955 D. -39,991
Mathematics