The graph of a trigonometric function of the form y = A sin (Bx) or y = A cos (Bx) for B > 0 is given. Determine the equation of the function represented by the graph.
A. y = 3 cos 
x
B. y = 2 cos 
x
C. y = 3 cos 2x
D. y = 2 cos 3x
Answer: C
Mathematics
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A solution contains 0.36 liters of sulfuric acid. If this represents 8% of the total amount, find the total amount.
A. 5 liters B. 5.5 liters C. 3.5 liters D. 7 liters E. 4.5 liters
Mathematics
Determine whether the improper integral converges or diverges.
+ x3)dx
A. Converges B. Diverges
Mathematics
Solve the inequality and express the solution set in interval notation. Graph the solution set on the real number line.
? 
- 
A. x ? - 
; 
B. x ? -8; (-?, -8]
C. x ? 8; (-?, 8]
D. x ? -8; [-8, ?)
Mathematics
Determine whether the improper integral is convergent or divergent.
A. Convergent B. Divergent
Mathematics