Dentify the number that does not belong with the other three. Explain your reasoning. (4 points) negative 10 over 2, negative 13.4, square root 18, 22.7 repeating 7

Hence Sqrt(18) is different from other 3 numbers.

Step-by-step explanation:

Given:

Four numbers as:

To find :

Which one of them is different from others?

Solution:

So consider the written form,

By applying that rational number p/q form where q not equal to 0 .

we should write every number in this form otherwise it will be irrational ot not prefect square.

So

1)-10/2=-5 which can written as

-5/1=p/q form  (rational number )

2)-13.4=-(13+0.4)

=13+2/5=69/5

which is p/q form rational number

3)22.77777

=22+0.7777

=22+7/9

=205/9.

which is p/q form rational number

4)sqrt(18)

which is no prefect square its value after decimal point will not stop at particular point it will go on.

hence Sqrt(18) is irrational number .

Sqrt(18) is irrational number .

Step-by-step explanation:

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!