Find the eccentricity of the ellipse or hyperbola.x2 - 25y2 = 25
A. 
B. 
C. 
D. 2
Answer: B
Mathematics
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Solve the problem.
Find the ratio of the volume of the cone to the volume of the hemisphere if the height of the cone, h, is equal to the diameter of the hemisphere, d.
A. 1 : 1 B. 4 : 3 C. 3 : 2 D. 1 : 2
Mathematics
Find the volume of the solid.
A. 3297 mi3 B. 329.7 mi3 C. 1648.5 mi3 D. 659.4 mi2
Mathematics
Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with y arbitrary.2x + 5y = -7-6x - 15y = 21
A. {(-1, -1)}
B. ?
C. 
D. 
Mathematics
Rewrite the sum using sigma notation.0 + 2 + 6 + 12 + 20
A. 
B. 
C. 
D. 
Mathematics