Question

Any help on this...? deals with irrational and rational numbers.

Answer 1

would it be the first one because the square roots cancel each other leaving the seven as the final answer

Answer 2

Yep that's correct @meln_n !

Answer 3

yeah! thanks mine helping me on the other one... this one was easy but the other i have to add three set of numbers that include as well square roots @math&ing001

Answer 4

Ok sure

Answer 5

Can you add each one of them and show me what you get ?

Answer 6

ok n_n

Answer 7

oh wait !! i got three for the third one .... \[(2-\sqrt{2})+(1-\sqrt{2}) = 3-2\sqrt{2} +2\sqrt{2} = 3\]

Answer 8

does that mean this one would be the answer because its a rational number ??? @math&ing001

Answer 9

Yep ^^

Answer 10

yay! thank you i get this then i dont which makes me feel everything is wrong lol @math&ing001

Answer 11

Happens, welcome !

Answer 12

im sorry to bother again but this one is sort of funky .... i added all of the problems but there seems to be three irrational answers instead of one ??? how do i eliminate the rest to get an answer??? am i missing something ... @math&ing001

Answer 13

It's because it's not addition they're telling you to do but product.

Answer 14

oppssss! omgoshhh what a fail -_- ... mmmhhh even after i multiply my answers are still all rational numbers -23,10,2,3,23 .... @math&ing001

Answer 15

@math&ing001

Answer 16

You made a mistake on #4
sqrt(2) (5-sqrt(2)) = 5sqrt(2) - 2

Answer 17

ohhhhhhh ok kinda didnt see what your doing but GOT IT soo the answer would be @math&ing001

Answer 18

okkkkk thank youuu

Answer 19

oh wait or does it stay at 5 (square root 2) - 2

Answer 20

Yep !

Answer 21

For this problem.... i dont really understand how to multiply the third and fourth ... like for the fourth would the answer be 18 ?? @math&ing001

Answer 22

Yep it's 18 for the fourth and 9sqrt(2) ( sqrt(2) + 9) = 18 + 81 sqrt(2)

Answer 23

ok thanks n_n @math&ing001

Answer 24

Welcome !