Use the properties of inverse trigonometric functions to evaluate 
.
A. 
B. 
C. 
D. 
E. 
Answer: D
Mathematics
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Use periodicity to evaluate the integral.
A. 154 B. 231 C. 77 D. 308
Mathematics
Evaluate the integral by making a substitution and then using a table of integrals.
A. 
+ C
B. 
- 
ln(3x + 2) + C
C. 
ln(3x2 + 2x)
D. 
+ C
Mathematics
Solve the problem.Under standard conditions, molecules of a gas collide billions of times per second. If each molecule has diameter t, the average distance between collisions is given by 
where n, the volume density of the gas, is a constant. Find 
.
A. 
= 
B. 
= - 
C. 
= - 
D. 
= - 
Mathematics
Solve the problem.If Gloria received a 12 percent raise and is now making $22,400 a year, what was her salary before the raise? Round to the nearest dollar if necessary.
A. $20,000 B. $20,400 C. $21,000 D. $19,712
Mathematics