Use a differential to approximate the quantity.
?
?
Round the result to the nearest thousandth, if necessary.
?
__________
Fill in the blank(s) with the appropriate word(s).
0.494
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Solve the problem.Find the volume of the solid generated by revolving the region in the first quadrant bounded by the x-axis and the curve y = sin 2x, 0 ? x ? ?/2 about the line x = ?/2.
A. 
B. 
?2 - ?
C. 
?
D. 
?2
Answer the question.Assume a is positive, b is negative, and c is positive for the expression (b - a) / cTell whether the value of the given expression is positive, negative or cannot be determined.
A. Negative B. Positive C. Cannot be determined
Fill in the blank with one of the words or phrases listed below. 
The 
of a polygon is the distance around the polygon.
A. perimeter B. surface area C. volume D. area
Evaluate the sum. Round to two decimal places, if necessary.
A. 1.82 B. -5.32 C. 419.65 D. -2.32