featherheart6 featherheart6

31-01-2017
Mathematics

Answered

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

a= 40

b=2 1/2

c= 5/8

d= 10(2)^0

Verified Answer :

niamhcaley niamhcaley

31-01-2017

10(-1)^2(-2)^2
10(1)(4)
It's 40

Answer Link

miam333 miam333

31-01-2017

10(-1)^2(-2)^-2
10(-1)^2 = 10
(-2)^-2 = .25
10 x .25 = 2.5
The answer is b

Answer Link

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