For problems 7-12, solve the equations. If the solution is irrational, round to the nearest ten-thousandth.
A. 
B. 
C. 
D. 
E. none of these
Answer: C
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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find sin(2?).
A. 
B. 
C. - 
D. - 
Lorimar Watch Company manufactures travel clocks. The daily marginal cost function associated with producing these clocks is
?
?
where 
is measured in dollars/unit and x denotes the number of units produced. Management has determined that the daily fixed cost incurred in producing these clocks is $130. Find the total cost incurred by Lorimar in producing the first 600 travel clocks/day.
?
A. $2,182
B. $1,970
C. $2,313
D. $2,254
Multiply and write the result in standard form.4i(5 - 4i)
A. 20i - 16i2 B. 20i - 16 C. 16 + 20i D. 20i + 16i2
Simplify the expression. If the expression cannot be simplified, so state.-0.3x6 - 1.4x6 - 0.4x6
A. -2.4x6 B. -14x6 C. -2.1x6 D. cannot be simplified