Solve the system of equations by the addition method.
A. (5, 25)
B. no solution
C. 
D. (25, 5)
Answer: D
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Evaluate the integral.
3x sec53x dx
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Mark typed an average of 75 words per minute on the first 500 words of his 1000 word essay. Because of fatigue he was only able to type 41 words per minute on the remaining 500 words. What was Mark's average words per minute on his entire essay? Round any approximate answers to the nearest integer.
a. 58 b. 53 c. 75 d. 41 e. 68
The given pattern continues. Write down the nth term of the sequence {an} suggested by the pattern.3, -6, 9, -12, ...
A. an = (-1)n ? 3 B. an = (-1)n ? 3n C. an = (-1)n + 1 ? 3n D. an = (-1)n + 1 ? 3
Solve the problem.During the week your stock's value (in dollars) at the end of the day changed by -2, 0, -4, +3, and +3. What was the total change in your stock's value for the week?
A. gained $1 B. gained $3 C. no change D. lost $3