Subtract.(5x2 - 11x + 8) - (2x2 - 8x + 15)
A. 3x2 - 3x + 7
B. 3x2 - 9x + 23
C. 3x2 - 3x + 23
D. 3x2 - 3x - 7
Answer: D
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The inverse of 
is
?
A. 
B. 
C. 
D. 
Solve the exponential equation. Express the solution set in terms of natural logarithms.
= -1
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.In what quadrant of the xy-plane does P(-7, 4) lie?
A. II B. I C. IV D. III
Solve the problem.If x is the hydrogen ion concentration of a sample of water, then the pH of that water sample is 
If the pH of the water from one lake is 5.0 and the pH of the water from a second lake is 5.4, how many times greater is the hydrogen ion concentration of the second lake than the hydrogen ion concentration of the first lake? Round your answer to the nearest hundredth.
A. 8.43 B. 0.40 C. 2.51 D. 12.02