Solve the problem.The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by 
where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the hydrogen ion concentration if the 
A. 1010
B. 10-10
C. 2.3
D. 0.1
Answer: B
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Use identities to simplify the expression.
A. cos2 x B. sin2 x C. tan x sec x D. cot x csc x
First, rewrite each equation in exponential form. Then, use a table of coordinates and the exponential form to graph the logarithmic function. Begin by selecting -2, -1, 0, 1 and 2 for y. Finally, based on your graph, describe the shape of a scatter plot that can be modeled by f(x) = log b x, 0 < b < 1.y = log1/2 x
A. 
decreasing,
although rate of decrease is slowing down
B. 
increasing
C. 
increasing,
although rate of increase is slowing down
D. 
decreasing,
although rate of decrease is slowing down
Provide an appropriate response.If the demand equation for a product is q = 
, where q is the number of units demanded at price p per unit, find the elasticity of demand when p = 48.
Fill in the blank(s) with the appropriate word(s).
Find the specified domain and express it in interval notation.For f(x) = 
and g(x) = x - 7, what is the domain of g/f ?
A. [3, ?) B. (3, ?) C. [3, 7) ? (7, ?) D. (3, 7) ? (7, ?)