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Question

Classify weither it is real, not real, rational, irrational. 1)square root of 36 over 4, 2)square root of 0.81, 3)-81, 4)-7.233 repeating number, 5)square root of 49, 6)- square root of 144, 7)9 over the square root of 3, 8)square root of 81 over the square root of 9, 9)21 over 0, 10)square root of -100, 11)8.67. find a real number between each pair of numbers, 12)4 2/5 and 4 3/5, 13) 7.25 and 15/2, 14)5/8 and 3/4. 15) Give an example of a rational number between -square root of 36 and 36, 16) give an example of an irrational number less than 0. okay thank u soo much whoevr answers these 16 questions plz put the number before the answer thanks!

Answer 1

1) sqrt(36) is 6 and 6/4 is rational
2) sqrt (0.81) is 0.9 which is rational
3) -81 is rational
4) anything with a repeating number is rational
5) sqrt(49) is 7 and is rational
6) -sqrt(144) is 012 which is rational
7) 9/sqrt(3) is not rational but real since sqrt(3) isn't
8) sqrt(81)/sqrt(9) = 9/3=3 and is 3 which is rational
9) 21/0 is undefined and isn't real
10) sqrt(- anything besides 0) isn't a real number
11) rational
12) 9/2
13) 7.251
14) 0.65
15) 0
16) -3*(pi)

Answer 2

1) Rational
2) Rational
3) Rational
4) Rational
5) Rational
6) Rational
7) Irrational
8) Rational
9) Not Real (?)
10) Not real
11) Rational

(note, rational and irrational numbers are both real numbers, and not real numbers can't be rational or irrational, by definition)

12) 4 1/2
13) 7 1/3
14) 11/16
15) 3
16) - sqrt(2)

Answer 3

1)real, rational (RL, RT) 2)RL, RT
3)RL, RT 4)-7.2333.... is RL, RT
5)RL, RT 6)RL, RT
7)RL, IRT 8)RL, RT
9)undefined, not allowed 10) not RL, not RT
11)RL, RT 12)4.5
13)7.4 14) 11/16
15)10 16) -PI; also minus sq rt of 2

There are of course an infinity of answers to qst'ns 12 thru 16 inclusive. The "fish" above will tide you over this time; here's hoping you're learning to fish -- for the future.