Question

I need help with math please wait while I type the equation into the comments.

Answer 1

\[(-27)^{\frac{ 2 }{ 3 }}\]

Answer 2

It's multiple choice
a. -9
b. 9
c. 81
(I thought it was -9 but that turned out wrong)

Answer 3

@AutumnRoseT thanks but I need to actually know how to do it and I don't need to graph it

Answer 4

I can help

Answer 5

OK thank you @deana99 please do.

Answer 6

Look, I know the answer is nine but I just need to know how to figure that out.

Answer 7

the top of the fraction tells us the power, the bottom tell us the root

Answer 8

what is (-27)^2

Answer 9

729

Answer 10

good

now we root it

\[\sqrt[3]{729}\]

Answer 11

I don't know how to do that

Answer 12

2/3

power of 2, root of 3

Answer 13

well, you can formulate a table of perfect cubes maybe ... and compare

Answer 14

what is 10^3?

Answer 15

300

Answer 16

no, 10*10*10 is not 300

Answer 17

hint 100*10= ?

Answer 18

i mean 1000

Answer 19

Ding ding :)

Answer 20

1000 yes, and 729 is less than that, so we are less then 10^3

what is 5^3?

Answer 21

125

Answer 22

ok so it's nine

Answer 23

because nine cubed is 729

Answer 24

and 125 is less then 729

we know we are between 5 and 10

what is 6^3, 7^3, 8^3, and 9^3

yeah, its 9, since 9^3 = 729 :)

Answer 25

OK thank you

Answer 26

the idea tho is to power the top , then root the bottom

Answer 27

one idea, if you feel spirited:

(-27)^(2/3) = y

(-27)^(2/3) * (-27)^(1/3) = y(-27)^(1/3)

(-27)^(2/3+1/3) = y(-27)^(1/3)

-27 = y(-3)

-27/(-3) = y

Answer 28

Dividing a negative and a negative you will get a positive! IMPORTANT TO KEEP IN MIND :)

Answer 29

Positive and negative will be NEGATIVE
AND + and + will be +

Answer 30

Yeah thanks @Here_to_Help15 very helpful

Answer 31

:)