46 . E
(A) (6^2 × 6)^5 = (6^3 )^5 = 615.
(B) (36)^5 = (6^2 )^5 = 6^10.
(C) (36^2 × 63 )^2 = (6^4 × 63 )^2 = (6^7 )^2 = 614.
(D) (216)^4 = (6^3 )^4 = 6^12.
(E) (6^4 )^4 = 6^16.
47 . A
When 5xy = 2, (5xy)^5 xy = 2^2 = 4.48 . C
Since alternate interior angles of parallel lines are congruent, m∠RQU =
m∠QTS.
49 . B
Since triangle AEF is a 30–60–90 triangle, the lengths of the sides are in a
ratio of and