kaydenpowell69
kaydenpowell69 kaydenpowell69
  • 06-05-2019
  • Mathematics
contestada

Elvaluate b^-3 for b=3
A. 27
B. 1/9
C. 1/27
D. -27

Respuesta :

jimrgrant1 jimrgrant1
  • 06-05-2019

Answer:

C

Step-by-step explanation:

Using the rule of exponents

• [tex]b^{-m}[/tex] ⇔ [tex]\frac{1}{b^{m} }[/tex], thus

[tex]3^{-3}[/tex] = [tex]\frac{1}{3^{3} }[/tex] = [tex]\frac{1}{27}[/tex] → C

Answer Link
prosborough198p2ub41
prosborough198p2ub41 prosborough198p2ub41
  • 06-05-2019

Answer: C 1/27

b^-3 and b=3

So we have 1/b^3= 1/3^3= 1/27

Answer Link

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