Solve using the quadratic formula. Use a calculator to approximate the solution to three decimal places.
x2 + 
x - 
= 0
A. 0.75
B. -1.25, 0.75
C. -1
D. -0.781, 1.281
Answer: D
Mathematics
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A. 
B. 
C. 
D. 2
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(-12)
A. - 
B. 
C. - 
D. 
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Find the exact value of the expression.sin 20° cos 40° + cos 20° sin 40°
A. 
B. 
C. 
D. 
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Provide the proper response.Explain why every polynomial function of the formf(x) = ax3 + bx2 + cx + d, a ? 0, must have exactly one point of inflection.
What will be an ideal response?
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