Solve the problem.The pH scale is used by chemists to measure the acidity of a solution. It is a base 10 logarithmic scale. The pH, P, of a solution and its hydronium ion concentration in moles per liter, H, are related as follows: H = 10-PFind the formula for the rate of change 
.
A. 
= -(ln P)10-P
B. 
= - 
C. 
= -(ln 10 )10-P
D. 
= (ln 10 )10-P
Answer: C
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Perform the conversion. Round to the nearest tenth when necessary.9.5 cm to in.
A. 950 in. B. 3.7 in. C. 0.1 in. D. 24.1 in.
Simplify.
A. 
B. 16
C. 1
D. 
Solve the problem.In how many ways can 8 people line up for play tickets?
A. 1 B. 16,777,216 C. 40,320 D. 8
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