I’m
which expression represents a rational number?
5/9 + (square root of 18)
pie+ (square root of 16)
2/7 + (square root of 121)
3/10 + (square root of 11)

Step-by-step explanation:

Since, a real number is called rational number if it can be expressed in the form of ,

Where, p and q are integers,

S.t. q ≠ 0,

If the number is not a rational number then it is irrational,

Now, the sum or difference of two rational numbers is a rational number,

While, the sum or difference of a rational number and an irrational number is an irrational number.

∵ √18, √11 and are irrational numbers,

Also, , and are rational number,

Now,

Hence,

to prove δxyz ≅ δmno using sss, you need to show the following:

  side 1             side 2               side 3

xy ≅ mn         yz ≅ no           xz ≅ mo

to prove δxyz ≅ δmno using sas knowing side xz and angle o, you need to show the following:

side 1             connecting angle           side 2

xz ≅ mo             ∠z ≅ ∠o                   yz ≅ no