Use the given information to find the exact value of the trigonometric function.cos ? = - 
, ? lies in quadrant III
Find cos 
.
A. 
B. - 
C. 
D. - 
Answer: B
Mathematics
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Evaluate the integral by making a substitution and then using a table of integrals.
A. 
+ ln 
+ C
B. 
- 
ln 
+ C
C. 
- 
ln 
+ C
D. 
+ 
sin-1 
+ C
Mathematics
Solve the problem.The voltage v (in volts) induced in a tape head is given by 
where t is the time (in seconds). Find the average value of v over the interval from t = 0 to t = 3. Round to the nearest volt.
A. 71,327 volts B. 1100 volts C. 6502 volts D. 16 volts
Mathematics
Solve the equation.10y = 5y + 5 + 4y
A. -50 B. -5 C. 50 D. 5
Mathematics
Use the Gauss-Jordan method to solve the system of equations. -3x - 8y = -9 -6x - 16y = -9
A. (-9, -9)
B. 
C. (2, 2)
D. No solution
Mathematics