Question

Okay so I have a couple more questions about logarithms.

Answer 1

"Which shows 3^-4 = 1/18 in logarithmic form?"
A.\[\log _{-4}3 = \frac{ 1 }{ 81 }\]B.\[\log _{3}(-4) = \frac{ 1 }{ 81 }\]C.\[\log _{3}(\frac{ 1 }{ 81 }) = -4\]D. \[\log _{-4}(\frac{ 1 }{ 81 }) = 3\]

Answer 2

c

Answer 3

U know how to did i change it ?

Answer 4

1/18 or 1/81

Answer 5

She meant 81

Answer 6

I meant 1/81, sorry

Answer 7

I don't quite understand how you got the answer, please feel free to explain!

Answer 8

Eyad explain her,please

Answer 9

Here is the law of changing :
\[\Large Log_{a}b=c \]
TO change that in to exponential :
\[\Large a^{c}=b\]

Answer 10

Oh okay! I understand now, thanks!

Answer 11

I have just one more question, if that's okay?

Answer 12

Sure ,Feel free to ask anything :P

Answer 13

Step 1:\[4^{x-1}=64^{x+3}\]Step 2:\[4^{x-1}=(4^{3})^{x+3}\]Step 3:\[4^{x-1}=4^{3x+9}\]
What would be the next step?
A. 4 = 3x + 9
B. x - 1 = -(3x + 9)
C. x - 1 = x + 3
D. x - 1 = 3x + 9

Answer 14

Since Base (4) = Base (4)
therefore power =power
which mean X-1=3x+9

Answer 15

Okay! Thank you, again!

Answer 16

:)