Use the Pythagorean identity.Find sin ?, given that cos ? = 
and 
? ? < 2?
A. - 
B. - 
C. -
D. - 
Answer: D
Mathematics
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Solve for x.2 log729
= 1
A. 54 B. 108 C. 27 D. 13.5
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Find the volume by using polar coordinates.The region bounded by the paraboloid 
and the xy-plane
A. 324? B. 648? C. 216? D. 432?
Mathematics
Use the properties of real numbers to simplify the expression.-9y - 5y
A. 14y B. -14y2 C. -14y D. -4y
Mathematics
Graph the function by first finding the relative extrema.h(x) = x4 - 2x2 + 4
A. 
B. 
C. 
D. 
Mathematics