Question

the decimal expansion of 11/80 is
(A)= TERMINATING
(B)= REPEATING
(C)= NON-TERMINATING
(D)= NONE OF THESE
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Answer 1

Answer:

key a........................

Answer 2

80= 2*2*2*2*5 = 2⁴*5¹

SINCE THE FACTORS OF DENOMINATOR IS IN THE FORM OF 2m5n, THE DECIMAL EXPANSION IS TERMINATIONG.

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