Question

Which value of B solves the equation?
B^-3=1/27
A.
3

B.
27

C.
9

D.
81

Answer 1

I'll help

Answer 2

C

Answer 3

@cowgirlcrazy66, @lind3

Answer 4

ok

Answer 5

\[\frac{ 1 }{ B ^{3} } = \frac{ 1 }{ 27 }\]

Answer 6

B = 3

Answer 7

oh sorry, not C

Answer 8

I believe it's A

Answer 9

Yes, it's A

Answer 10

Sorrry

Answer 11

If you have a negative exponent in the numerator, it will be positive in the denominator. Re-write your equation first as @faisalalif1999 showed you a few posts up.

Answer 12

ok thank you a lot!!!

Answer 13

If you square the 3 with -3 you will get the same exact answer with 1/27

Answer 14

Yes it's A.

Answer 15

thx!!!!!!

Answer 16

No problem!

Answer 17

B=3 my friend @whitetiger2288

Answer 18

ok thanks!

Answer 19

(NP)

Answer 20

B = 3! Let's see how long we can keep this thread alive.

Answer 21

LOL

Answer 22

You have:

\[B^{-3} = \frac{1}{27}\]

We can re-write this as:

\[\frac{1}{B^3} = \frac{1}{27}\]

If we multiply both sides by 27 and B^3:

\[27 \times B^3 \times \frac{1}{B^3} = \frac{1}{27}\times 27 \times B^3[\]

we have

\[27 = B^3\]

Taking the cube-root of both sides:

\[\sqrt[3]{27} = \sqrt[3]{B^3}\]

we get:

\[3 = B\]

which is

\[B = 3\]

Answer 23

In english, your answer is "B is equivalent to three," or "B is equal to three."

Answer 24

whitetiger what time is it were you are?

Answer 25

Translated to German, that is "B ist gleich drei."

Answer 26

Whitetiger I have to go to bed but I will be online all day so talk to you tomorrow!!! BYE BYE