Evaluate the expression for the given value of the variable.2x2 + 3x - 7 for x = -1
A. -2
B. -12
C. -6
D. -8
Answer: D
Mathematics
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Find the determinant of the given matrix.
A. 18 B. 108 C. 54 D. 216
Mathematics
Use the discriminant to find what type of solutions (two rational, two irrational, one rational, or two nonreal complex) each of the following equations has. Do not solve the equation.x2 - 6x + 9 = 0
A. two rational solutions B. one rational solution C. two irrational solutions D. two nonreal complex solutions
Mathematics
Provide an appropriate response.Find f(x) if 
.
A. 
B. 
C. 
D. 
Mathematics
Identify the vertices and center of the ellipse.
A. vertices: 
center: 
B. vertices: 
center: 
C. vertices: 
center: 
D. vertices: 
center: 
E. vertices: 
center: 
Mathematics