Question : (9/64)-1/2 A) (3/8) B) (9/128) C) Not a real number D) (8/3) : 2146447

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Simplify the expression involving rational exponents.

11) (9/64)^-1/2

A) (3/8)

B) (9/128)

C) Not a real number

D) (8/3)

12) 100^-5/2

A) (1/100,000)

B) Not a real number

C) -100,000

D) - 250

13) (- (64/27))^-4/3

A) (256/81)

B) Not a real number

C) (81/256)

D) - (256/81)

14) ((1331/64))^-2/3

A) (121/16)

B) (64/1331)

C) (16/121)

D) (1331/64)

15) 125^-1/3

A) (1/5)

B) (1/6)

C) - 5

D) - (1/5)

Write with radicals. Assume that all variables represent positive real numbers.

16) (mn)^1/7

A) (7)√(7)√(1/(mn))

B) (mn)

C) (√(mn))⁷

D) (mn)^-7

17) (x⁴y⁴)^1/7

A) ((xy) to the (7)√(4)⁷

B) ((xy))^7)√(4

C) (1/((xy))⁴)

D) x²⁸y²⁸

18) (5py²)^1/3

A) √(5)√(5py²)

B) (5py)

C) (3)√(5py²)

D) (3)√(5py)

19) (6m⁴ + 4k²)^-4/3

A) ((3)√(6m⁴ + 4k²))^3)√(4

B) (1/((6m⁴ + 4k²))^4)√(4)

C) ((6m⁴ + 4k²))^4)√(3

D) (1/((6m⁴ + 4k²))³)

20) (9m + n)^5/6

A) (6)√(9m + n⁵)

B) ((6)√(9m + n)⁵)

C) ((5)√(9m + n)⁶)

D) (5)√(9m + n⁶)