Use the pH scale to answer the question.What is the pH of a solution with a hydrogen ion concentration of 0.00001 mole per liter? Is this solution an acid or a base?
A. pH = 7; neutral
B. pH = 6; acid
C. pH = 8; base
D. pH = 5; acid
Answer: D
Mathematics
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Evaluate the integral.
A. - 
B. 
C. 
D. 
Mathematics
Refer to the weighted voting system 
and the Banzhaf definition of power. (The four players are P1, P2, P3, and P4.)Which players in the coalition {P1, P2, P3, P4} are critical?
A. All four players B. P1 only C. P1 and P2 D. None of the players E. none of these
Mathematics
Find the axis of symmetry of the quadratic function.f(x) = (x + 5)2 + 7
A. y = -7 B. x = 5 C. y = 7 D. x = -5
Mathematics
Use the product rule to simplify.
A. - 2a2b 
B. 2 
C. 2ab 
D. 2ab 
Mathematics