Find the volume of the indicated region.the tetrahedron cut off from the first octant by the plane 
A. 210
B. 70
C. 105
D. 140
Answer: B
Mathematics
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Change the order of integration and evaluate the integral.
A. 20?
B. 
?
C. 
?
D. 40?
Mathematics
Simplify the expression.5-8 ? 57
A. 
B. 1
C. 5
D. 
Mathematics
Solve the problem.Find the surface area of the cube.
A. 390 mm2 B. 25,350 mm2 C. 12,675 mm2 D. 274,625 mm2
Mathematics
Write the equation for the shape described.The upper semicircle centered at (0, 0) with radius 3
A. y = 
B. y = -
C. y = 
D. y = 
Mathematics