Use implicit differentiation to find y".xy - x + y = 3
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Write the ratio as a fraction in simplest form.$30 to $51
A. 
B. 
C. 
D. 
Mathematics
Use the graph to estimate any solutions to the given equation on the interval 
tan x = sin x
A. 
, 
, 
, 
B. None
C. ?
D. 0, ?
Mathematics
Solve the problem.If n(A) = 15, n(A ? B) = 43, and n(A ? B) = 11, find n(B).
A. 40 B. 28 C. 39 D. 38
Mathematics
Chemists measure the acidity of an aqueous solution using pH. The pH is 
where pH is a measure of the hydrogen ion concentration 
measured in moles of hydrogen per liter of a solution. Find the pH of a solution if 
= 
. Round your answer to one decimal place, if necessary.
a. 6.7 b. 5.2 c. 6.2 d. –6.7
Mathematics