Question

Uhhhhh help its on square roots and idk anything about square roots

Answer 1

1. Irrational 2. Rational

Explanation:

`\sqrt[3]{81}` =
`\sqrt[3]{3^4}`

=
`\sqrt[3]{3^3\cdot 3}` =
`\sqrt[3]{3^3}`
`\sqrt[3]{3}`

= 3
`\sqrt[3]{3}` OR in decimal form which is 4.32674...

4.32674... is an irrational number because it cannot be expressed as a ratio of two integers such as in m/n form.

Examples of irrational :
`\pi`, 4.32674... and so on

`\sqrt[3]{-64}` = -
`\sqrt[3]{64}`

= -
`\sqrt[3]{4^3}` = -4

-4 is a rational number because it can be written as a fraction same thing that I said in number 1.

Examples of rational : -4 = -4/1 , 8/9 and so on

Hope this helps!