Divide. Write with positive exponents.
A. 3x4 - 9x2
B. -6x7 - 9x2
C. 3x4 + 18x5
D. -6x9
Answer: A
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Determine if the series converges or diverges. If the series converges, find its sum.
A. converges; 
B. converges; ?
C. converges; - 
D. diverges
Evaluate the integral.
dx
A. 
sin 4x - 
sin3 4x + C
B. 5 sin 4x - 
sin3 4x + C
C. 
sin 4x - 
cos3 4x + C
D. 
sin 4x + 
sin3 4x + C
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
Write the number without exponents.7.768 × 10-6
A. .00007768 B. -7,768,000 C. .000007768 D. .0000007768