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23 March, 04:17

Evaluate 10x^2y^-2 for x=-1 and y = - 2

a = 40

b=2 1/2

c = 5/8

d = 10 (2) ^0

Answers (2)
  1. M
    23 March, 06:40
    0
    10 (-1) ^2 (-2) ^2

    10 (1) (4)

    It's 40
  2. S
    23 March, 07:49
    0
    10 (-1) ^2 (-2) ^-2

    10 (-1) ^2 = 10

    (-2) ^-2 =.25

    10 x. 25 = 2.5

    The answer is b
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