Approximate the natural logarithm with a scientific calculator. Round to four decimal places.ln 21,200,000
A. 16.8695
B. 7.3263
C. 0.0591
D. 5.3566
Answer: A
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Convert the temperature. Give your answer to the nearest tenth of a degree.31°F = °C
A. 14.8°C B. -0.6°C C. 87.8°C D. 23.8°C
Express the sum using summation notation. Use a lower limit of summation, not necessarily 1, and k for the index of summation.a + ar + ar2 + . . . + ar14
A. 
B. 
C. 
D. 
Solve the problem.The pressure of a gas varies jointly as the amount of the gas (measured in moles) and the temperature and inversely as the volume of the gas. If the pressure is 
kiloPascals (kPa) when the number of moles is 5, the temperature is 
, and the volume is 
, find the pressure when the number of moles is 8, the temperature is 
, and the
volume is 
.
A. 1782 kPa
B. 1650 kPa
C. 891 kPa
D. 957 kPa
Add or subtract as indicated. Simplify, if necessary.
- 
A. 
B. 
C. 7
D. 