Use the imaginary unit to write the expression.
A. -5i
B. 5i
C. 5
D. -5
Answer: B
Mathematics
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Find the volume of the solid generated by revolving the region about the given line.The region bounded above by the line 
, below by the curve 
, and on the right by the line 
, about the line 
A. 
?
B. 
?
C. 625?
D. 
?
Mathematics
A point on the terminal side of angle ? is given. Find the exact value of the indicated trigonometric function of ?.(-9, -4) Find cot ?.
A. - 
B. - 
C. 
D. 
Mathematics
Solve the compound inequality. Graph the solution set.0.5 < 0.2x - 0.5 < 1.4
A. (5, 9.5)
B. [5, 9.5]
C. (0, 4.5)
D. (5, 9.5)
Mathematics
Add the numbers using the number line.-97 + 95 
A. -192 B. -2 C. 2 D. 192
Mathematics