anonymous
  • anonymous
.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
29,30,31
Vocaloid
  • Vocaloid
well, it says that point S is between R and T so RT = RS + ST
Vocaloid
  • Vocaloid
60 = 3x - 16 + 4x - 8 the first step is to solve for x, do you think you can take it from here?

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anonymous
  • anonymous
hold i'll do it then see if im correct
anonymous
  • anonymous
x=12?
Vocaloid
  • Vocaloid
yup, that's the first step. now that we know what x is, we can now find RS and ST RS = 3x - 16 = ? ST = 4x - 8 = ?
anonymous
  • anonymous
doin it hold on
anonymous
  • anonymous
rs is 24
anonymous
  • anonymous
st is 40
Vocaloid
  • Vocaloid
check rs again. st is right
Vocaloid
  • Vocaloid
3(12)-16 = ?
anonymous
  • anonymous
lol sorry 20
Vocaloid
  • Vocaloid
yeah.
Vocaloid
  • Vocaloid
problem #30 is basically the same thing, do you wanna give it a shot?
anonymous
  • anonymous
k
anonymous
  • anonymous
i got 7
anonymous
  • anonymous
x=7
anonymous
  • anonymous
rs i got 6
anonymous
  • anonymous
st i got 11
anonymous
  • anonymous
@vocaloid when you get a chance
Vocaloid
  • Vocaloid
yup those are all correct, ready to move to #31?
anonymous
  • anonymous
yup :)
anonymous
  • anonymous
@vocaloid
anonymous
  • anonymous
i have no idea how to do it
Vocaloid
  • Vocaloid
ah, sorry, got distracted there for a sec let's draw the diagram and label it based on what the problem tells us |dw:1440113699458:dw|
anonymous
  • anonymous
okY
Vocaloid
  • Vocaloid
AD = 12, so let's mark that right away|dw:1440113728465:dw|
Vocaloid
  • Vocaloid
now the problem tells us that AC and CD are equal, so what do you think each of them are?|dw:1440113761200:dw|
anonymous
  • anonymous
6?
Vocaloid
  • Vocaloid
righto! let's put that on our diagram|dw:1440113809996:dw|
Vocaloid
  • Vocaloid
now, the problem also tells us that AB and BC are equal, so what do you think they are? |dw:1440113840316:dw|
anonymous
  • anonymous
3?
Vocaloid
  • Vocaloid
yup, now that we have enough info to keep going
Vocaloid
  • Vocaloid
now, it wants us to find the length of every segment in the diagram, so I'll make a list here: AB = 3 BC = 3 CD = 6 AC = 6 CD = 6 BD = 9 AD = 12 so, how many are greater than 3?
anonymous
  • anonymous
5
Vocaloid
  • Vocaloid
so our probability is 5/7
Vocaloid
  • Vocaloid
(since there are 7 total segments) and that ends up being our final answer for #31
anonymous
  • anonymous
why are there multiple CD's
Vocaloid
  • Vocaloid
oh crap I guess I must have counted it twice, haha... I guess our probability should be 4/6 then
Vocaloid
  • Vocaloid
or 2/3
anonymous
  • anonymous
CAn you help with one more then im done i think this one is easy idk
Vocaloid
  • Vocaloid
sure
anonymous
  • anonymous
ill be posting the image now too
anonymous
  • anonymous
anonymous
  • anonymous
press and hold ctrl and scroll to make it bigger if you need too
Vocaloid
  • Vocaloid
well, the abdomen is easy enough, it's 2 and 1/4 of an inch, just reading off the ruler
Vocaloid
  • Vocaloid
for the thorax, the right end is at the 4-inch mark, approximately, and the left end is at 2 1/4 inches so (4) - (2 and 1/4) = 1 and 3/4 inch for the thorax
anonymous
  • anonymous
huh?
Vocaloid
  • Vocaloid
hm? where did you get lost?
anonymous
  • anonymous
so (4) - (2 and 1/4) = 1 and 3/4 inch for the thorax
Vocaloid
  • Vocaloid
well, we can measure the abdomen by looking at the ruler, since the abdomen starts at 0 for the thorax, though, it doesn't start at 0 so we need to find both ends and subtract
anonymous
  • anonymous
ooooh okay i get it so 1 and 3/4 for thorax
anonymous
  • anonymous
so its 1/2 inch bigger
anonymous
  • anonymous
9/4-7/4
Vocaloid
  • Vocaloid
right.
Vocaloid
  • Vocaloid
that's it
anonymous
  • anonymous
okay thanks that's it for the night/day wherever you live :)

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