Provide an appropriate response.
Solve the quadratic equation using the quadratic formula:x2 - 8x + 6 = 0
A. x = 4 + 1.41i, 4 - 1.41i
B. x = -7.16, -0.84
C. x = -4 + 1.41i, -4 - 1.41i
D. x = 7.16, 0.84
Answer: D
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Solve the problem.The grading scale for a C in Amy's biology class is an average on tests between 70% and 80%, inclusive. Amy has 66%, 83%, and 75% on the first three tests this semester. What range of scores on the fourth test would give her a C?
A. Between 70% and 80%, inclusive B. Between 61% and 91%, inclusive C. 91% or better D. Between 56% and 96%, inclusive
Express the expanded form as a Hindu-Arabic numeral.(4 × 102) + (9 × 101) + (7 × 1)
A. 20 B. 497 C. 200 D. 252
Express the integrand as a sum of partial fractions and evaluate the integral.
dx
A. ln 
- 
tan-1 
+ C
B. ln 
- 
+ C
C. - 
tan-1 
- 
+ C
D. ln 
- 
tan-1 
- 
+ C
Which of the following statements concerning the leadership of the Board of Directors IS CORRECT?
A. Over the past several years the percentage of non-employee board chairs has increased B. Over the past several years the percentage of non-employee board chairs has decreased C. Over the past several years the percentage of non-employee board chairs has remained constant D. Over the past several years the percentage of CEOs who are also board chairs has risen to 55 percent