Multiply to find the exact answer. Express the answer as a whole or mixed number when possible and simplify.3 ? 5
? 
A. 12
B. 11
C. 8
D. 12
Answer: D
Mathematics
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The hydrogen ion concentration of a solution is 2.5 × 10-6 mol/L [H+]. What is the pH of this solution?
A. -6 B. 5.6 C. 2.5 D. 6
Mathematics
Solve the inequality, then graph the solution.4x < 12
A. x > -3
B. x < -3
C. x < 3
D. x > 3
Mathematics
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.
[5 ln(x + 9) - ln x - ln(x2 - 8)]
A. ln 
B. ln 
C. ln 
D. ln 
Mathematics
Write the fraction as a decimal.
A. 0.3548 B. 0.03548 C. 0.003548 D. 3.548
Mathematics