what is the value of the experssion? 3^-2+9^-2= plz help

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what is the value of the experssion? 3^-2+9^-2= plz help

Mathematics
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Remember a^-b = 1/(a^b)
what
I think the answer is 10/81

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Other answers:

no
10/81
10/81
(1/3^2)+(1/9^2) (1/9)+(1/81) (9+1)/81 10/81
you have to do this muliply th e eperrsions with its powers
I'm trying to say when you have a a number raised to a negative exponent its 1 divided by the number to the positive exponent. So like the first one 3^-2 is the same as 1/(3^2)
no you cant do that
mulply the expersins
Yes, you can! Maybe this is new for you, but it is correct Sara1000. This is the way everyone does :)
oh okk it is in my choice
thanks
positive or ingitve
I just run your question in a software an I end up with 10/81 as an answer. Become my fan please :)
ok
can you answe my phisics qusestion
Whats your physics question?
look for it
asma: toshiko wants to determine what type of freproduction a particualr single -celled organism undergroes .she conducts an experiment in which she anaylazes the chromosomes of the organism,she allows time for the the organisms to reproduce ,and then she anyalazes the chromoses of the duaghter cells.she discovers that all of the organisms offspring are gentically identical to the original orgaisinim asma: 1) identify the dependent (responding) varibale in toshikos experimnent.
number of organisms present
depends on time
from toshikos results ,draw a conclusion about how this organism reprodues.
is this biology or physics?
idk
do you
for the fisrst qestion it doesnt tell you the number of organisms present
looks like biology lol id say they reproduce asexually if its biology if math then the word that comes to mind is exponentially?
ok
for the fisrst qestion it doesnt tell you the number of organisms present
from toshikos results ,draw a conclusion about how this organism reprodues.
hello
So as I said the dependent variable should be the population
And id say it reproduces asexually meaning it splits apart (multiplies)
from toshikos results ,draw a conclusion about how this organism reprodues.
Ive answered 3 times now

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