Find all specified roots.Seventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. -1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1
Answer: C
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The graph of a linear equation:
a. Is a straight line b. Always passes through the origin c. Is a curved line d. Can be either a straight or curved line e. Is always a vertical line
Find the x- and y-intercepts. If no x-intercepts exist, state so.f(x) = -x2 + 13x - 42
A. x-intercepts (6, 0) and (7, 0); y-intercept (0,-42) B. x-intercepts (6, 0) and (7, 0); y-intercept (0,6) C. No x-intercepts; y-intercept (0,6) D. x-intercepts (-6, 0) and (-7, 0); y-intercept (0,-42)
Which of the following DOES NOT reflect an example of the impact a new entrant might have on an industry?
A. A new entrant might take away market share from existing competitors. B. A new entrant might increase production capacity in the industry so that overcapacity results. C. A new entrant might force existing firms to learn new ways of doing things. D. A new entrant might decrease competitive rivalry.
Find the exact value of y, or state that y is undefined.y = sin-1 
A. 
B. - 
C. 
D. 