What do you do to check whether a number is rational or irrational?

Question

How does finding the square root of a number compare to finding the cube root of a number? Use the number 64 in your explanation.

Can someone please help me with these questions?!

Answer 1

If you're taking square roots, the number must be a perfect square to give a rational root.

64 = 8^2, so √64 = 8 is rational

Similarly, since

64 = 4^3, ∛64 = 4 is rational.

For small numbers, it's easy to check for possible roots, as there aren't that many candidates. In general, it's much more difficult.

Answer 2

Oh ok thank you very much Steve! :D

Answer 3

for the first one: Irrational Numbers. All numbers that are not rational are considered irrational. An irrational number can be written as a decimal, but not as a fraction. An irrational number has endless non-repeating digits to the right of the decimal point

Answer 4

Thx Steve!!!

Answer 5

For the 2nd question:

Square is number which we get after multiply a number x to itself where as cube is a number which we get after multiplying a number x to itself three times. To find the square root or cube root of any number just right it using prime factorization method .

Answer 6

What do you do to check theater a number is rational or irrational?

Answer 7

Lesson 4: Roots as Solutions to Equations, Cube Roots
1.D
2.B
3.A
4.B
5.C
6.B
7.C
8.C
100%

Answer 8

Is wow correct?

Answer 9

YoU gUyS ArE GoInG oT GeT rEpoRTed. XD

Answer 10

and yes wow is correct btw

Answer 11

Oh NuH I aM gOnNa GeT rEpOrTeD

Answer 12

I think 2 is c

Answer 13

And i poop sksksksk

Answer 14

thx for selecting my answer

Answer 15

Number 4 is a select all that applies. Ik the answers but just lettin yall know.