Given the set sketched on the number line, identify the type of interval (open, closed, half-open, open infinite, closed infinite), write the set using set-builder notation, and write the set using interval notation.
A. closed infinite interval; {x|x ? -6}; [-6, ?)
B. open infinite interval; {x|x > -6}; (-6, ?)
C. closed infinite interval; {x|x ? -6}; (-?, -6]
D. open infinite interval; {x|x < -6}; (-?, -6)
Answer: C
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Solve the problem.From April through December 2000, the stock price of QRS Company had a roller coaster ride. The chart below indicates the price of the stock at the beginning of each month during that period. Find the monthly average rate of change in price between June and September.
A. $8.67 per month B. -$13.00 per month C. $13.00 per month D. -$8.67 per month
Establish the identity.
= 1 + sin ? cos ?
What will be an ideal response?
Solve.42x + 6x2 = 0
A. -6, -7 B. -7 C. 0, -7 D. -21
Answer the question appropriately.Explain how to construct a square given one side 
and constructing only perpendicular lines. If it is not possible, explain why.
What will be an ideal response?