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Mathematics 57 Online
OpenStudy (samantha2234):

Can someone PLEASE help, I will medal!!!!

OpenStudy (samantha2234):

OpenStudy (misty1212):

HI!!

OpenStudy (samantha2234):

:) Hello

OpenStudy (misty1212):

what do you think is the number farthest to the left?

OpenStudy (misty1212):

obviously it is a negative choice

OpenStudy (samantha2234):

above or below?

OpenStudy (misty1212):

you have 8 numbers to choose from up top right? then you are supposed to drag them to the number line?`

OpenStudy (samantha2234):

Yaassss!!!! My teacher drew all over them so they are kinda hard to see

OpenStudy (misty1212):

so the question is, what do you think goes in the left hand slot, the first position on the number line

OpenStudy (misty1212):

if it is not obvious, i will tell you

OpenStudy (samantha2234):

Yeah, I'm not catching on

OpenStudy (misty1212):

ok so the negative numbers are on the left, yes? we have to choose one with a minus sign in front

OpenStudy (samantha2234):

Indeed

OpenStudy (misty1212):

there are 4 choices with a minus sign

OpenStudy (misty1212):

and i don't know it it is obvious or not, because the numbers look goofy but you do know that \(\sqrt{100}=10\) yes?

OpenStudy (misty1212):

which makes \(-\sqrt{99}\) very close to \(-10\)

OpenStudy (samantha2234):

Okay

OpenStudy (misty1212):

so that is the one farthest to the left

OpenStudy (samantha2234):

Got that in

OpenStudy (misty1212):

ok now three more minuses to go

OpenStudy (misty1212):

what do you think is further to the left, \(-10\sqrt{\frac{3}{2}}\) or \(-\sqrt{17}\)? it if is not clear, a calculator would help`

OpenStudy (samantha2234):

-17 or whatever I cant do the symbol :p

OpenStudy (misty1212):

actually no,

OpenStudy (misty1212):

check here http://www.wolframalpha.com/input/?i=-10sqrt(2%2F3),+-sqrt(17)

OpenStudy (samantha2234):

-.- Im not good at this

OpenStudy (misty1212):

you see that \(-10\sqrt{\frac{2}{3}}\) is about \(-8.16\)

OpenStudy (samantha2234):

Yeah now I do

OpenStudy (misty1212):

whereas \(-\sqrt{17}\)is about \(-4.13\) so \(-10\sqrt{\frac{2}{3}}\)is the next one on the left

OpenStudy (samantha2234):

Yay!!! Only twp more negatives!!!

OpenStudy (misty1212):

then comes \(-\sqrt{17}\)

OpenStudy (misty1212):

don't worry about being good at it, you are learning it

OpenStudy (samantha2234):

:) true

OpenStudy (misty1212):

ok one more negative to put in, and we are done with the minuses

OpenStudy (samantha2234):

Yupp, and I believe pi would go near the 3

OpenStudy (misty1212):

yes, just to the right of 3

OpenStudy (samantha2234):

On the positive side

OpenStudy (misty1212):

yes

OpenStudy (misty1212):

just a little bigger than 3, means just to the right of 3

OpenStudy (misty1212):

how about the one near 7, what do you think that is?

OpenStudy (samantha2234):

50

OpenStudy (misty1212):

yes, since \(\sqrt{49}=7\), \(\sqrt{50}\)is just to the right

OpenStudy (misty1212):

so only two more to go, which should be easy enough to figure out what number is bigger, 4 or 9

OpenStudy (samantha2234):

9

OpenStudy (misty1212):

ok so \(\sqrt[3]{4}\) will be to the left of \(\sqrt[3]{9}\)

OpenStudy (samantha2234):

so that would go near the one?

OpenStudy (misty1212):

\(\sqrt[3]{4}\) is closer to the 1, \(\sqrt[3]{9}\) is closer to 2

OpenStudy (samantha2234):

:) got it!

OpenStudy (misty1212):

you want to take a screen sho-t of your answers i will check it

OpenStudy (samantha2234):

Sure

OpenStudy (samantha2234):

OpenStudy (lexi):

shes doing a interim test

OpenStudy (misty1212):

you got it \[\color\magenta\heartsuit\]

OpenStudy (samantha2234):

Thanks ♥

OpenStudy (misty1212):

yw

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