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L2doll:
Find the perimeter of a quadrilateral with vertices at C (−2, 1), D (2, 4), E (5, 0), and F (1, −3).
a
12 units
b
16 units
c
20 units
d
24 units
L2doll:
I chose C but i don't know if that correct
GalaxyzStarz:
Let's see.
L2doll:
see what?
GalaxyzStarz:
@l2doll wrote:
see what?
I'm creating a graph currently.
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L2doll:
ok
GalaxyzStarz:
I have to write a lot, so please stay with me.
L2doll:
ok
L2doll:
woww he left
L2doll:
that's crazy
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L2doll:
o he is back
Prettykitty89:
soldier just say you don't know the answer
GalaxyzStarz:
\[\frac{ }{ AB }=\sqrt{(4^2+3^2)}=\frac{ }{ AB }=\sqrt{16+9}\]
\[\frac{ }{ AB }=\sqrt{25}\]
\[\frac{ }{ AB }=5\]
\[\frac{ }{ BC }=5\]
\[\frac{ }{ CD }=5\]
\[\frac{ }{ DA }=5\]
So in which means since it's a quadrilateral, it has all equal sides.
\[5+5+5+5=20\]
So that will give you an answer of 20.
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L2doll:
thank you sooo muchhhhh
L2doll:
LAST ONE I PROMISE
Cyber:
I'm just going to say that is super advanced math for such a simple problem but I'm not going to say anything
L2doll:
LAST ONE?
GalaxyzStarz:
@l2doll wrote:
LAST ONE?
Yeah, completely fine.
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L2doll:
OK
L2doll:
Question 11 (1 point)
(05.01 LC)
Use the image below to answer the following question:
A right triangle is shown. The two angles that are not 90 degrees are marked x and y. The leg across from angle y measuring 9, another leg across from angle x measuring 12, and the hypotenuse measuring 15.
What relationship do the ratios of sin y° and cos x° share?
a
The ratios are both identical. (9 over 15 and 9 over 15)
b
The ratios are opposites. (negative 9 over 15 and 9 over 15)
c
The ratios are reciprocals. (9 over 15 and 15 over 9)
d
The ratios are both negative. (negative 15 over 9 and negative 9 over 15)
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GalaxyzStarz:
Are you familiar with SOHCAHTOA?
L2doll:
YES!
L2doll:
what about it
GalaxyzStarz:
Do you know the sin of an angle?
L2doll:
opposite hypotenuse
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L2doll:
right
GalaxyzStarz:
the sin of an angle is the side opposite the angle over the hypotenuse. Correct.
GalaxyzStarz:
Because the sides have lengths in integers, you will have a fraction representing the side opposite/hypotenuse.
L2doll:
ok
L2doll:
@galaxyzstarz
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GalaxyzStarz:
What is the side length opposite the x?
L2doll:
12
L2doll:
Sooo/....
GalaxyzStarz:
The side adjacent to the angle y is the side that is 5. And the hypotenuse is 13. So the cos of angle y = 5/13. What did we say the sin of angle x was?
L2doll:
2.6?
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L2doll:
well i said 12
GalaxyzStarz:
In a fraction form.
L2doll:
oh
L2doll:
3/25 ????
GalaxyzStarz:
No, it'll be 5/13, same of cos angle y.
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L2doll:
but y
GalaxyzStarz:
So the relationship will be?
GalaxyzStarz:
Why is it because the side adjacent to angle y is 5
L2doll:
Identical?
L2doll:
ohh ok
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GalaxyzStarz:
Correct!! :)
L2doll:
so therefore the answer would be 9/15 and 9/15
GalaxyzStarz:
Yes.
L2doll:
YOU DONT KNOW HOW MUCH THIS MEANS YOU ARE TRULY 1 of a kind
GalaxyzStarz:
@l2doll wrote:
YOU DONT KNOW HOW MUCH THIS MEANS YOU ARE TRULY 1 of a kind
<3
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L2doll:
i think that's well thers one question I'm not sure but imma submit it
L2doll:
oooooo
L2doll:
yesss
L2doll:
i got 13/15
L2doll:
not bad
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GalaxyzStarz:
Nice!
GalaxyzStarz:
87%
L2doll:
yea you think i should take another try
L2doll:
the ones you helpd with were correct
L2doll:
thank you so much dude can I come back if I need help??
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GalaxyzStarz:
@l2doll wrote:
thank you so much dude can I come back if I need help??