Simplify.
A. 
B. 
C. 
D. 
Answer: D
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Find the largest open interval where the function is changing as requested.Decreasing f(x) = x3 - 4x
A. 
B. 
C. 
D. 
Find a parametrization for the curve.The line segment with endpoints (3, 9) and (1, 3)
What will be an ideal response?
Write as the sum and/or difference of logarithms. Express powers as factors.log5
A. log5x - 2
B. - 2log5x
C. 
log5x - 2
D. 10 - 
log5x
A solution is an acid if its pH is less than 7 and a base if its pH is greater than 7. The pH is defined by 
where [H+] is the concentration of hydrogen ions in the solution. Use this information to answer the question.The concentration of hydrogen ions in a solution is approximately 10-7.6. What is the pH of the solution? Is the solution an acid or a base?
A. The pH is 7.6. The solution is an acid. B. The pH is -7.6. The solution is a base. C. The pH is -7.6. The solution is an acid. D. The pH is 7.6. The solution is a base.