Use the discriminant to determine the number and nature of the solutions to the quadratic equation. Do not solve the equation.x2 - 2x + 7 = 0
A. exactly one real solution
B. two real solutions
C. two nonreal solutions
Answer: C
Mathematics
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Solve the equation.-y + 25 + 5y = 13 + 10y
A. y = -12 B. y = 2 C. y = 12 D. y = -2
Mathematics
Translate each graph to an inequality using the variable x.
A. x > -5.2 B. x ? -5.2 C. x ? -5.2 D. x < -5.2
Mathematics
Find all solutions of the equation in the complex number system.x2 - 6x + 9 = -25
A. {3 + 5i} B. {3 + 5i, 3 - 5i} C. ? D. {3 - 5i}
Mathematics
Graph the hyperbola.25y2 = 9x2 + 225
A. 
B. 
C. 
D. 
Mathematics