Question

A. write the expression 81^-3/4 in radical notation.

B. evaluate the radical expression

Answer 1

im lost pl help me

Answer 2

1/27

Answer 3

and decimal form is 0.037...

Answer 4

ok 0.037 is

Answer 5

@Directrix he started messaging me and I explained:)

Answer 6

I would like to know the steps for my own learning.

Answer 7

lol

Answer 8

Sure! :P

81^-3/4 you can use the laws of exponents to rewrite it

A positive rational exponent is
b^m/n= nth root (b^m)

A negative exponent would be
b^-m/n = 1/b^m/n (when you have a negative exponent, you can rewrite it over one so it's positive)

Answer 9

84^3/4 is 27, so 1/27 got my anwser

Answer 10

beautiful

Answer 11

a is 27 and b 1/27

Answer 12

noo

Answer 13

ok im dum

Answer 14

How did you get 1/27, the explicit steps for that is what I am asking. @Lukecrayonz

And, what about this part, " write the expression 81^-3/4 in radical notation." What is the answer for that?

Answer 15

oh i just noticed u changed ur 81 to 84!! how did u get this

Answer 16

no it 81

Answer 17

im sorry

Answer 18

Did you follow my last explanation?

Answer 19

I think this is the same question:

http://openstudy.com/study#/updates/527226d5e4b077aaee84128b