Multiply or divide the fractions. Reduce to simplest form.
? 
A. 
B. 
C. 
D. 
Answer: C
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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 H+ represents the concentration of the hydrogen ions in the solution in moles per liter. Find the pH if the hydrogen ion concentration is 
A. 1 B. -13 C. -1 D. 13
Provide an appropriate response.What polynomial, when divided by -12ax6, yields -7ax5 - 5x4 + 9 as a quotient?
A. 84ax5 + 60x4 - 108 B. 84a2x11 - 5x4 + 9 C. 84a2x11 + 60ax10 - 108ax6 D. 84a2x11 + 60ax10
Solve the problem. Round to the nearest tenth of a percent, if necessary.The price of a printer was reduced from $400 to $240. What was the percent of decrease?
A. 66.7% B. 60% C. 40% D. 45%
Find the amount of each payment needed to accumulate the indicated amount in a sinking fund. Round to the nearest cent.
$6100, money earns 6% compounded semiannually, 6 years
A. $943.06 B. $361.61 C. $429.81 D. $874.50