Samst3r Samst3r

03-03-2017
Mathematics

contestada

which expression simplifies to (-5 · 2² · 2⁰)⁻² ? Please show work.
a. -80
b. -40
c. -1/40
d. 1/400

Respuesta :

theshammy123 theshammy123

03-03-2017

the answer is d. 2⁰ is 1 so you dont have to multiply that. (-5 x 4) ⁻² is -20⁻². -20⁻² = (1/-20)² ; 1 x 1 = 1; -20 x -20 = 400. so it is 1/400

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