What is the sum and classification of 3/20 + √10 (sqrt of 10)? 1) 3. irrational 2) 3. rational 3) 18. irrational 4) 18. rational (not a multiple choice)

The correct option is 1

Step-by-step explanation:

Given the number . we have to identify the number is rational or irrational

As we know is irrational

i.e

The above number is irrational as it is non repeating and non-termination number after decimal.

As the sum of a rational and an irrational must be irrational

∴ is irrational which gives the sum 3.31227766....

hence, the correct option is 1)

answer

false

explanation

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a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional