Explain how to obtain the graph of the second function from the graph of the first function, or state that the graphs are identical.y = sin x, y = -sin (x + 2?)
A. The graphs are identical.
B. Translate the graph 2? units to the left, and then reflect it over the y-axis.
C. Translate the graph 2? units to the right, and then reflect it over the y-axis.
D. Translate the graph 2? units to the left, and then reflect it over the x-axis.
Answer: D
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Solve the problem.The disk (x - 5)2 + y2 ? 4 is revolved about the y-axis to generate a torus. Find its volume. (Hint: 
= 2?, since it is the area of a semicircle of radius 2.)
A. 20?2 B. 40?2 C. 20? D. 10?2
Provide an appropriate response.Explain why the decimal points must be lined up vertically when adding decimal numbers.
What will be an ideal response?
If possible, evaluate the expression at the given value of the variable.
, x = -3
A. - 
B. - 3
C. 3
D. 
Use the even-odd properties to find the exact value of the expression. Do not use a calculator.cot (-60°)
A. - 
B. 
C. 
D. -