anonymous
  • anonymous
CAN SOMEONE PLEASE HELP ME!!?? IT WOULD BE A BIG FAVOR
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
ummmm
anonymous
  • anonymous
Line IJ has an equation of a line y=-3x-8. Which of the following could be an equation for a line that is parallel to line IJ? A. y=3x+7 B. Y=1/3x+7 C. Y=-3x+7 D. Y=-1/3x+7
anonymous
  • anonymous
srry i suck at linear algebra

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anonymous
  • anonymous
anonymous
  • anonymous
Thanks anyway
Vocaloid
  • Vocaloid
parallel means that the slope is the same y = mx + b, where m is the slope if y=-3x-8, what is m?
anonymous
  • anonymous
Wouldn't M be -3?
Vocaloid
  • Vocaloid
yup, now look at the answer choices and find another equation where m = -3
anonymous
  • anonymous
Ok so it's C?
Vocaloid
  • Vocaloid
excellent work, you got it ~
anonymous
  • anonymous
Thanks!! Do you think you can help me with another one?
Vocaloid
  • Vocaloid
sure
anonymous
  • anonymous
Find the perimeter of the shape below:
1 Attachment
anonymous
  • anonymous
17.6 21.4 26.7 32.9
Vocaloid
  • Vocaloid
are you familiar with the pythagorean theorem?
Vocaloid
  • Vocaloid
a^2 + b^2 = c^2 does this equation look familiar?
anonymous
  • anonymous
No, not really but I know that perimeter you have to add all sides up
anonymous
  • anonymous
A little bit.
Vocaloid
  • Vocaloid
alright, so in order to find the length of each side, we'll use that equation let me draw the graph out to make this a bit easier
anonymous
  • anonymous
Ok
Vocaloid
  • Vocaloid
|dw:1435087088021:dw|
Vocaloid
  • Vocaloid
|dw:1435087161806:dw|
Vocaloid
  • Vocaloid
alright, let's start off by finding the length of AB the pythagorean theorem tells us that AB^2 = 1^2+4^2, so what is AB?
anonymous
  • anonymous
Would it be 17?
Vocaloid
  • Vocaloid
not quite AB^2 = 17, right? so what is AB?
anonymous
  • anonymous
Haha I typed that in on my calculator and got 17
Vocaloid
  • Vocaloid
AB^2 = 17 so AB = square root of AB^2 = square root of 17
anonymous
  • anonymous
I'm not really sure.
Vocaloid
  • Vocaloid
AB = square root of 17
anonymous
  • anonymous
4??
anonymous
  • anonymous
4.123105626??
Vocaloid
  • Vocaloid
right, we'll round to 4.1 for now
anonymous
  • anonymous
the answer is C due to the fact they have the same slope
anonymous
  • anonymous
Ok
Vocaloid
  • Vocaloid
C was the answer for the first question BUT we're working on another question right now
anonymous
  • anonymous
That's what I thought but how do u get C in trying to learn
Vocaloid
  • Vocaloid
C was the answer for the FIRST question, we're working on a DIFFERENT question right now...
anonymous
  • anonymous
Ok so we round up to 4.1 then what?
Vocaloid
  • Vocaloid
anyway, back to the question, we found AB, right? now we need to find BC
Vocaloid
  • Vocaloid
|dw:1435087575549:dw|
anonymous
  • anonymous
Ok so we do the same thing right?
Vocaloid
  • Vocaloid
yes! do you think you can try to find BC now?
anonymous
  • anonymous
I got 2
Vocaloid
  • Vocaloid
not quite... BC^2 = 2^2 + 2^2 BC = square root of BC^2
anonymous
  • anonymous
2.8?
Vocaloid
  • Vocaloid
yup! ok, let's move on to the next part, CD
anonymous
  • anonymous
Well I got 8 but the square root of 8 is like 2.8237432
Vocaloid
  • Vocaloid
|dw:1435087800899:dw|
anonymous
  • anonymous
Ok would CD be 7?
Vocaloid
  • Vocaloid
no, please do what we did before...
Vocaloid
  • Vocaloid
CD^2 = 7^2 + 2^2
anonymous
  • anonymous
I'm not sure about CD? Sorry
Vocaloid
  • Vocaloid
it's the same process we've been doing CD^2 = 7^2 + 2^2 CD = square root of CD^2
anonymous
  • anonymous
Would it be 7.2
anonymous
  • anonymous
Now we just add all the numbers we got together
Vocaloid
  • Vocaloid
we're not done yet, we still have one more side left... AD...
Vocaloid
  • Vocaloid
|dw:1435088068612:dw|
anonymous
  • anonymous
Oh haha ok
Vocaloid
  • Vocaloid
once you find AD, THEN add up all the sides together and pick the closest answer (it might be a little off because of rounding)
anonymous
  • anonymous
Ok umm 6?
Vocaloid
  • Vocaloid
no, please repeat the same process we've been doing...
Vocaloid
  • Vocaloid
AD^2 = 6^2 + 4^2
anonymous
  • anonymous
7.1
Vocaloid
  • Vocaloid
alright, now add everything together and pick the closest response
anonymous
  • anonymous
Ok I got 21.1 so the closest one would be 21.4?
Vocaloid
  • Vocaloid
yup! the reason why our answer doesn't match up exactly is because we rounded a bit
anonymous
  • anonymous
THANK YOU SO MUCH!! If I had a bunch of medals I would give them to you

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