Question

Which of the following is a true statement?

All square roots are irrational.

All decimals are irrational.

All non-perfect squares have irrational square roots.

All irrational numbers can be written as ratios of two integers.

Answer 1

which one do you think it is

Answer 2

this one All square roots are irrational.

Answer 3

what about sqrt(25) ?

Answer 4

is that irrational?

Answer 5

no

Answer 6

wow you have alot of people veiwing

Answer 7

you are correct, sqrt(25) = 5 = 5/1, which shows it's rational

Answer 8

since it can be written as a fraction of whole numbers

Answer 9

so b then

Answer 10

so is this the correct answer All decimals are irrational.

Answer 11

im still her courtney

Answer 12

yess because 0.2145214 cant be written as a faction

Answer 13

no, 2.5 is rational since 2.5 = 25/10 = 5/2

Answer 14

no you just dont get rid of the demical

Answer 15

but the fact that 2.5 = 5/2 means that 2.5 is rational

Answer 16

listen badgurl it is B

Answer 17

ok jim wat do u think it is

Answer 18

All non-perfect squares have irrational square roots.

Answer 19

since sqrt(25) = 5, but 25 is a perfect square

however, sqrt(26) is irrational since you can't write it as a fraction of two integers

notice how 26 is a non-perfect square

Answer 20

oh ok yeah i remember my teach talking about that

Answer 21

you know what just go with the one you think it is i want be mad

Answer 22

ok courtney and jim i have another one

Answer 23

so you want me to leave

Answer 24

Approximate \[\sqrt{110}\]to the nearest tenth without using your calculator.

Answer 25

do you want me to leave or what

Answer 26

A. 10.0
B. 10.1
C. 10.4
D. 10.5

Answer 27

and no i dnt want you to leave help me

Answer 28

ok i say 10.4 but that is with i with the caculator

Answer 29

10*10 = 100

11*11 = 121

So the number is between 10 and 11

Answer 30

So let's say it was 10.5 (that's the midpoint between 10 and 11)

Answer 31

so

110/10.5 = 10.47619

Answer 32

ok i have a more ? courtney u still there

Answer 33

notice how close we are already

Answer 34

yea but 10.4 is the correct answer with i caculator

Answer 35

ok next ?

Answer 36

Which of the following expressions would appear furthest to the right on a number line? \[A. \sqrt{3}+5 B.7 C. \sqrt{36} D.\frac{ 15 }{ 2 }\]

Answer 37

ok badgurl have to go but i will be back on in a few

Answer 38

i promise

Answer 39

jim help me

Answer 40

Are you allowed to use a calculator here?

Answer 41

yeah

Answer 42

ok great

Answer 43

sqrt(3) = 1.73205

Answer 44

so sqrt(3) + 5 = 1.73205 + 5 = 6.73205

Answer 45

do you see how I'm getting this?

Answer 46

yeah a lil

Answer 47

what is sqrt(36)

Answer 48

i have no clue

Answer 49

you agree that 6 times 6 = 36 right?

Answer 50

yes

Answer 51

so sqrt(36) = 6

Answer 52

finally, what is 15/2

Answer 53

it an improper fraction

Answer 54

use calculator to find out what 15 divided by 2 is

Answer 55

7.5

Answer 56

so the original list of numbers becomes

6.73205, 7, 6, 7.5

Answer 57

which is the largest one

Answer 58

7.5

Answer 59

that corresponds to 15/2

Answer 60

so that is the largest number, so it's the furthest to the right on the number line

Answer 61

convert 325 f to appropriate metric units

Answer 62

to meters?

Answer 63

i got it thanks though

Answer 64

ok np