Find a cofunction with the same value as the given expression.tan 31°
A. cot 31°
B. cot 59°
C. sec 31°
D. cot 121°
Answer: B
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Provide an appropriate response.Which of the following statements is false?
A. 
converges if p >1 and diverges if p ? 1.
B. The integral test does not apply to divergent sequences.
C. If an and f(n) satisfy the requirements of the Integral Test, and if 
converges, then 
= 
dx.
D. 
converges if p > 1.
Solve the problem.In a school survey, students showed these preferences for instructional materials. 
About how many students would you expect to prefer computers in a school of 700 students?
A. About 126 students B. About 36 students C. About 252 students D. About 140 students
Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.
+ 
= 1
- 
= 0
A. 
B. 
C. 
D. ?
Evaluate the expression.
4
A. - 
B. -81
C. 81
D. 