Solve the problem.In chemistry, the pH of a substance can be determined using the formula pH = -log [H+], where [H+] represents the hydrogen ion concentration. Determine the pH of the solution which has a hydrogen concentration of 4.1 × 10-11. Round to the nearest tenth.
A. 10.4
B. 10.7
C. 11.6
D. -11.6
Answer: A
Mathematics
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Solve the proportion equation.
= 
A. 2.6 cm B. 3.1 cm C. 3.5 cm D. 2.5 cm
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Evaluate the expression for the given replacement values. Write the answer in simplest form.xy for x = 
, y = 
A. 
B. 
C. 
D. 
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Decide whether or not the functions are inverses of each other. 
, g(x) =
A. Yes B. No
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Find all the zeros of the polynomial function.P(x) = 16x3 - 24x2 + 10x - 2
A. 1, 
+ 
i
B. 1
C. 
+ 
i, 
- 
i
D. 1, 
+ 
i, 
- 
i
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