0
Still curious? Ask our experts.
Chat with our AI personalities
ViviYour ride-or-die bestie who's seen you through every high and low.
Chat with Vivi
CoachSuccess isn't just about winning—it's about vision, patience, and playing the long game.
Chat with Coach
ReneChange my mind. I dare you.
Chat with ReneAdd your answer:
Earn +20 ptsQ: Is the square root of 21 a real number?
Write your answer...
Submit
Still have questions?
Continue Learning about Math & Arithmetic
Is the square root of 84 a rational number?
No because it is 2 times the square root of 21 which is an irrational numberThe square root of 84 is not a rational number
What are the square root of 21?
The square roots of 21 are 4.5826 (rounded) and the negative of the same number.
Is the square root of 441 a rational number?
Yes because 21 is a rational number
Is the square root of 21 an irrational or a rational number?
irrational
Is the square root of 5 and squa re root of 21 irrational?
Yes. The square root of a natural number (positive integer) is either an integer, or an irrational number.
Trending Questions
What and 2 thirds of 18?
What state do most people don't know about that is freezing?
What ordered pairs is not a solution to 2x 2y equals 4?
Is sizes a verb?
What is 5.5ft into centimeters?
How did you write in words 10000025.00?
When an equation includes a term with a variable denominator what additional reason requires that the solutions be checked?
How do you write fifty million in scientific notation?
What is the probability of 4 cards being red if all the red faced cards and black faced cards numbered 2-9 are put into a bag and randomly drawn?
Is 15.8 greater than 15.800?
What are multiples of 405?
How do you write 100 034 008 101 in words?
How many meters in 23 linear meters?
What did the Indian say to a guy with a bucket over his head Cryptic quiz?
How do you fined the LCM of 48 and 72?
How do I solve 5x plus 2y equals 20?
What is the integer for loss of 3 pounds?
How many sides does a septgon have?
How 2 draw a kite?
What is the equation for a circle with a center of 3 and 1 and a radius of 4?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.