Asked by anonymous

Which of these numbers can be classified as both real and irrational?
a. 5.85
b. 63.4
c. square root 21
d. square root 36
Is the answer D?
Answered by Circles
1. Make sure the numbers aren't imaginary.
(Imaginary numbers can't be real)
2. Irritational cannot be written as a fraction.

Soooo, you are correct! :)
Answered by anonymous
So the answer is 100000% D?
Answered by Steve
NO! 36 = 6^2, so sqrt(36) = 6, a rational number.

4^2 = 16 and 5^2 = 25
so 21 has no rational square root.
The answer is C
Answered by Damon
no sqrt 36 = 6
but what is sqrt 21 ?
Answered by anonymous
square root 21=4.582575695, so is the answer C? Because I do not understand what you are saying. C is the answer?
Answered by Steve
√21 is not 4.582575695

It is 4.582575695....
and is not a rational number

How many different ways do we have to say the answer is CCCCCCCC??????
Answered by anonymous
Gee ok I get it please don't yell. Damon was sayigng what is the square root of 21 so I got confused
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