Find the x-intercepts (if any) for the graph of the quadratic function.3x2 + 10x + 6 = 0Give your answers in exact form.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the focus and the directrix of the parabola.y = 2x2 - 8x + 7
A. Focus: 
; directrix: y = - 
B. Focus: 
; directrix: y = - 
C. Focus: (2, 7); directrix: x = 9
D. Focus: (2, 1); directrix: x = -3
Mathematics
Solve the system by substitution or elimination. If a system is inconsistent or has dependent equations, say so.y = - 
x-5x - 7y = 1
A. 
B. ?; inconsistent system
C. 
D. 
Mathematics
Solve the equation by factoring.x2 - 3x - 40 = 0
A. {8, - 5} B. {-40, 0} C. {-8, 5} D. {-8, - 5}
Mathematics
Write the decimal as a fraction or mixed number in lowest terms.0.566
A. 
B. 
C. 
D. 
Mathematics