Question

Simplify the expression (properties of rational exponents) 4/(3)^-2

Answer 1

is the ans is 28?

Answer 2

no.

Answer 3

or \[8\div3 ?\]

Answer 4

the choices are 36x^2 or 24x^2

Answer 5

your missing an x in ur question

Answer 6

Use the formula:

\[\frac{1}{b^{-a}} = b^a\]

Answer 7

srry bout that, its where the 3 is.

Answer 8

\[\frac{4}{(3x)^{-2}}\]is this it?

Answer 9

So, the question is like this:

\[\frac{4}{(3x)^{-2}}\]

Answer 10

yes.

Answer 11

\[\frac{1}{b^{-n}}=b^n\]soo\[\frac{4}{(3x)^{-2}}=4(3x)^2 =4 \times 9x^2 =36x^2\]

Answer 12

\(\Rightarrow {4} \times \Large {1 \over (3x)^{-2}} \)

\(\Rightarrow 4 \times (3x)^2 \)

\(\Rightarrow 4 \times 9x^2\)

Answer 13

thank u both, can you guys help me with another one?

Answer 14

Ah sure.. close this one or post it right here

Answer 15

1/5x times 1/5x

Answer 16

I thought the ans was 1/25 but it's not so idk

Answer 17

is it just 1/5x?

Answer 18

\[\frac{1}{5x} \times \frac{1}{5x}=\frac{1}{5x \times 5x}=\frac{1}{25x^2}\]

Answer 19

Nah..

\(\Large {1 \over 5x} \times {1 \over 5x} = {1 \times 1 \over 5x \times 5x}\)

Answer 20

@lalaly you win at typing -_-

Answer 21

lol parthy , next time i will let u do it

Answer 22

so the ans would be 2/25?

Answer 23

nno its 1/(25x^2)

Answer 24

that's not one of my choices?

Answer 25

I'll show u them

Answer 26

1/5x , 2/10x, or 2/5x

Answer 27

So, I am thinking you have to add that two numbers and not to multiply them..

\[\frac{1}{5x} + \frac{1}{5x} = \frac{1 +1}{5x} = \frac{2}{5x}\]

Answer 28

thanks :)

Answer 29

Welcome dear..