Solve the problem.At a certain copy center, the cost y (in dollars) of purchasing x thousand printed cards can be approximated by 
Use implicit differentiation to find and interpret 
when 
and 
A. 
= 60 means that ordering an additional thousand cards will cost approximately $30.00 more.
B. 
= 60 means that ordering an additional 60 cards will cost $1000.00 more.
C. 
= 30 means that ordering an additional thousand cards will cost approximately $30.00 more.
D. 
= 30 means that additional cards will cost approximately $30.00 each.
Answer: C
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Find the requested value.Find sin ? if tan ? = - 
and cos ? = 
.
A. 
B. 
C. - 
D. - 
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. Round your answers to four decimal places, if necessary.
?
, 
?
, 
__________
?
, 
__________
What will be an ideal response?
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