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?
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! :)
So the answer is 100000% D?
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
no sqrt 36 = 6
but what is sqrt 21 ?
square root 21=4.582575695, so is the answer C? Because I do not understand what you are saying. C is the answer?
√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??????