Solve the equation for the interval [0, 2?).2 sin2x = sin x
A. x = 
, 
, 
, 
B. x = 0, ?, 
, 
C. x = 
, 
D. x = 
, 
Answer: B
Mathematics
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Solve the problem.Suppose a business can sell x gadgets for p = 250 - 0.01x dollars apiece, and it costs the business 
dollars to produce the x gadgets. Determine the production level and cost per gadget required to maximize profit.
A. 111 gadgets at $248.89 each B. 10,000 gadgets at $150.00 each C. 11,250 gadgets at $137.50 each D. 13,750 gadgets at $112.50 each
Mathematics
Add or subtract as indicated. Write the answer in simplest form.- 
+ 
A. - 
B. - 
C. - 
D. 
Mathematics
A set of exam scores is 80, 75, 85, 90, 100, 70, 60. The standard deviation equals
A. 
B. 7
C. 
D. 
E. none of these
Mathematics
Perform the indicated operations. Simplify, if possible.
+ 
- 
A. 
B. 
C. - 
D. - 
Mathematics