Evaluate.
, when m = 9 and n = 15
A. -12
B. 4
C. -6
D. -2
Answer: D
Mathematics
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Solve the problem.Find the mass of the solid in the first octant between the spheres 
and 
if the density at any point is inversely proportional to its distance from the origin.
A. 
k?
B. 
k?
C. 11k?
D. 66k?
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.2x3 + 4x2 - 30x
A. 2x(x - 3)(x + 5) B. (2x2 + 6x)(x - 5) C. 2x(x + 3)(x - 5) D. (x - 3)(2x2 + 10)
Mathematics
Use the properties of exponents to simplify the expression. Write with positive exponents.(5a1/7b5/7)2
A. 25(ab)10/7 B. 10a2/7b5/7 C. 5a2/7b10/7 D. 25a2/7b10/7
Mathematics
Corporate governance begins with
A. the CEO. B. the Board of Directors. C. front-line managers. D. everyone in the organization.
Mathematics