Question

https://gyazo.com/47e244b6634e7c1af2940501c21b6c17

Answer 1

@3mar

Answer 2

do you know what square root is

Answer 3

sort of

Answer 4

like square root of 36 is 6x6 right?

Answer 5

what do you think it is

Answer 6

yeah so the square root of 36 is 6

Answer 7

do you know what an irrational number is

Answer 8

no

Answer 9

It is a number that does not end or repeat

Answer 10

So would 1.3333333 be a rational or irrational number?

Answer 11

rational because .3 is repeating

Answer 12

Right!! So now that you know that, lets take the number 49 from your list.

Answer 13

Can you find the square root of that? I'll give you a hint; it is rational.

Answer 14

7x7

Answer 15

Right so the square root would just be 7

Answer 16

ok

Answer 17

Lets do 64

Answer 18

8

Answer 19

Those are the two that are rational. But lets find one of the irrational, just so you understand

Answer 20

How about the square root of 10?

Answer 21

idk .-.

Answer 22

The first thing that you would want to do is guess the closest whole number you can think would be the square root.

Answer 23

So it is between 3 and 4.

Answer 24

Because we know that 3*3=9 and 4*4=16 and 10 is between 9 and 16

Answer 25

And it is obviously closer to three than four because ten is closer to 9 than 16

Answer 26

Do you understand the reasoning here.

Answer 27

yes

Answer 28

Ok good.

Answer 29

Now a scientific calculator is very helpful at this point to figure out all of the numbers.

Answer 30

here's a link to one. http://web2.0calc.com/

Answer 31

Just type in the number that you want to find the square root of and hit the button with the square root over the x and hit equals

Answer 32

Your answers are A,B,E

Answer 33

ok ty

Answer 34

I just wanted to make sure you understood

Answer 35

can you help with another?

Answer 36

I can certainly try