Name the postulate that explains why the following statement is true: Either , m?A = m?B, m?A> m?B or m?A

(a) Addition Property of inequalities
(b) Transitive Law
(c) Subtraction Property of inequalities
(d) Trichotomy Law

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(d) Trichotomy Law

Mathematics

Determine whether the argument is valid or invalid.Michael Bolton is a hunk or Madonna cannot sing. If Madonna cannot sing, then Cigar does not win the Triple Crown. Cigar wins the Triple Crown. Therefore, Michael Bolton is not a hunk.

A. Valid B. Invalid

Solve. = 

A. No solution
B.
C. 16
D. 4

Find an equation for the sphere with the given center and radius.Center (0, 0, 8), radius = 5

A. x2 + y2 + 5 z2 - 16z = -39 B. x2 + y2 + 5 z2 + 16z = -39 C. x2 + y2 + z2 + 16z = -39 D. x2 + y2 + z2 - 16z = -39

Evaluate the expression. ? ?

A. 8,064 B. 406,425,600 C. 168 D. 672 E. none of the above