Find the area or volume.Find the volume of the solid generated by revolving the region in the first quadrant under the curve 
bounded on the left by x = 1, about the x-axis.
A. 
?
B. 4?
C. 16?
D. 
?
Answer: D
Mathematics
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Use ?, ?, ?, or both ? and ? to make a true statement.{11, 12, 13} 
{10, 11, 12, 13}
A. ? and ? B. ? C. ? D. ?
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Find the slope and the y-intercept of the given line.y = -4x + 7
A. -4, (0, -7) B. 7, (0, -4) C. -7, (0, -4) D. -4, (0, 7)
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Find a row echelon form or a reduced row echelon form, as indicated, for the given matrix.Find a row echelon form for the matrix.
What will be an ideal response?
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Use an appropriate identity to find the exact value of the expression.cos (165°)
A. 
B. - 
C. 
D. 
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