Identify all the sets to which the number 3.1214122144 . . belongs.

a)rational number
b)irrational number
c)integer, rational number
d)whole number, integer, rational number

The answer is (B) Irrational number.

Step-by-step explanation: The given number is 3.1214122144 . . .. We are to check out of the given options all the sets to which the given number belongs.

The given number is in decimal form, so it cannot be an integer or a whole number.

Also, the digits after the decimal are non-repeating and non-terminating. This is the property of irrational numbers. In rationals, either the digits after the decimal are terminating or they are repeating. Therefore, the given number is irrational.

Thus, the correct option is (B) Irrational number.

are you an artist's daughter? cuz dang you a fine piece of art, girl.

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm