richi1 richi1
  • 25-02-2018
  • Mathematics
contestada


5). What was the value of 1/2^-2 x^-3 y^5 for x=2 & y= -4

A) 16

B) -4

C) -1/32

D) -16

Respuesta :

CastleRook
CastleRook CastleRook
  • 26-02-2018
The value of the expression is given by:
(1/2)^-2x^-3y^5
substituting x=-4 and y=2 we get:
(1/2)^-2(-4)^-3(2)^5
=2^5/((1/2)²×(-4)³)
=-2
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