(E) 19,600 cubic cm7 . Solve for x, to the nearest tenth: log 12 640 = x.
(A) 1.7
(B) 2.6
(C) 2.8
(D) 53.3
(E) 7,6808 . A triangle with coordinates (2,0), (2,6), and (6,0) is rotated about the
line x = 2. What is the volume, in cubic units, of the resultant solid?
(A) 16
(B) 8 π
(C) 16 π
(D) 32 π
(E) 48 π9 . Within a given area code, how many seven-digit numbers are
available, given the
restrictions that the first three digits cannot be 911 or 411 and thefirst digit cannot be a 1 or a 0?