The total cost (in dollars) of producing 1 unit of a product is given by 
, where x represents the cost per pound of raw materials and y represents the hourly rate for labor. The present cost for raw materials is $15 per pound and the present hourly rate for labor is $11. Indicate how to use the cost function C to determine how an increase of $1 per pound for raw materials will affect the total cost. Round your answer to two decimal places.
?
A. 
B. 
C. 
D. 
E. 
Answer: C
Mathematics
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Integrate the function.
A. 
B. 
C. ?
D. 2 sin-1 
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Simplify the expression by combining like terms.9x + 5 - 2x + 9
A. 7x + 14 B. 11x + 14 C. 21x D. 21
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Perform the indicated operation. Write the answer in scientific notation.
A. 4.8 × 109 B. 2.4 × 107 C. 2.4 × 109 D. 4.8 × 107
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Determine whether the given point is on the graph of the equation.y2 = 2x; (13, 
)
A. Yes B. No
Mathematics