Solve the problem.The pH of a chemical solution is given by the formula pH = -log10[H+] where [H+] is the concentration of hydrogen ions in moles per liter. Find the pH if the [H+] = 4.7 × 10-12.
A. 12.33
B. 11.67
C. 11.33
D. 12.67
Answer: C
Mathematics
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Determine the most appropriate metric unit to go in the blank. Choose from L, mL, kg, g, and mg.The horse weighs 470 
.
A. g B. mL C. L D. mg E. kg
Mathematics
Add or subtract as indicated. Write the answer in simplest form.
+ 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the integral.
A. ex sin-1 (ex) + C
B. sin-1 (ex) + C
C. sec-1 (ex) + C
D. -2
+ C
Mathematics
Write the number in the sentence in digits.The population of BigTown is two million, four hundred eighty-eight thousand, one hundred thirty-four.
A. 2,488,134 B. 2,488,000,134 C. 200,488,134 D. 20,488,134
Mathematics