Question

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

Answer 1

Answer:

1.   Irrational   2.   Rational

Step-by-step 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!