All of the following are irrational except
a. the square root of 5
b. the square root of 7
c. the square root of 9
d. the square root of 11

C.The square root of 9

Step-by-step explanation:

A number that can not be expressed in the form of

Where, q ≠ 0, is called irrational number.

Also, the square root of a prime number is always an irrational number,

5, 7, 11 are prime numbers,

⇒ √5, √7 and √11 are irrational number,

Also, √9 = 3 which is a rational number,

Hence, option C is correct.

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

it would take 7/10 of an hour too fill the pool.

step-by-step explanation: