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+] = 8.6 x 10-3.
A. 2.93
B. 3.93
C. 3.07
D. 2.07
Answer: D
Mathematics
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The period T (in seconds) of a pendulum is 
, where L is the length of the pendulum (in feet). Find the period of a pendulum whose length is 10.0000 feet.
?
A. 1.010 sec B. 3.511 sec C. 5.511 sec D. 4.511sec E. 4.011 sec
Mathematics
Express the integrand as a sum of partial fractions and evaluate the integral.
A. ln
+ C
B. 4ln
- 3ln
+ C
C. 3ln
+ 3ln
+ C
D. 3ln
+ 3ln
+ C
Mathematics
Express the value in scientific notation.
A. 48 × 107 B. 48 × 10-7 C. 6 × 106 D. 6 × 10-6
Mathematics
Construct a stem and leaf display for given data.The numbers below represent the commute times (in minutes) for a group of college students.
A. 
B. 
C. 
D. 
Mathematics