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In Mathematics / Middle School | 2014-10-31

Which value of \( b \) solves the equation?

\[ b^{-3} = \frac{1}{216} \]

Asked by Melony

Answer (3)

b − 3 = 216 1 ​ b 3 1 ​ = 216 1 ​ b 3 1 ​ = 6 3 1 ​ b 3 = 6 3 b = 6 ​

Answered by mariamikayla | 2024-06-10

if b^-3=1/216 find the reciprocal (^-1) of each side so it will be b^3=216 and then find the cube root so b=∛216 which is 6

Answered by jamiesm | 2024-06-10

The value of b that solves the equation b − 3 = 216 1 ​ is 6 . To find this, we rewrite the equation, take reciprocals, and then deduce that b = 6 from the cube root of both sides. Thus, b = 6 is the solution.
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Answered by mariamikayla | 2024-10-31