anonymous
  • anonymous
How do I find x https://www.connexus.com/content/media/456845-2232011-114052-AM-326327256.png someone help and I will love you forever.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
please don't just give the answer i really need to know how to do this for the test.
anonymous
  • anonymous
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anonymous
  • anonymous
what?

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Directrix
  • Directrix
Do you know right triangle trig?
anonymous
  • anonymous
We learned about it but i never understood
Directrix
  • Directrix
How is the cosine function of an angle defined in right triangle trig?
anonymous
  • anonymous
... uhm lol. I'm not sure.. by the porportional side? o.o
Directrix
  • Directrix
Words such a opposite side, adjacent side, and hypotenuse will be in the ratio used. Does that sound familiar?
anonymous
  • anonymous
yes it does
anonymous
  • anonymous
here let me look at my notes and type down what i have written down tell me if i do this
anonymous
  • anonymous
Cos = Adjacent/hypotonuse
Directrix
  • Directrix
Cosine of which angle in this case? Look at the diagram to determine that.
anonymous
  • anonymous
the 24 degree angle?
Directrix
  • Directrix
Yes. Cos (24) = ?/x What goes in the numerator?
anonymous
  • anonymous
cos (24) = 11/x?
Directrix
  • Directrix
Yes. Cosine of an angle is the ratio of the adjacent leg to the hypotenuse. So, cos 24 = 11/x What is the value of cosine of 24 ?
anonymous
  • anonymous
im not sure how to put that into my calculator :c
Directrix
  • Directrix
You can go to the Google home page and enter "cosine of 24 degrees" and the value will be shown.
anonymous
  • anonymous
0.913545458
anonymous
  • anonymous
thats the answer?
Directrix
  • Directrix
No
Directrix
  • Directrix
0.913545458 = 11/x. Do you know how to solve that for x?
anonymous
  • anonymous
uh hold on
anonymous
  • anonymous
is it 0.08304959
Directrix
  • Directrix
I don't think so. 0.913545458 = 11/x 0.913545458 / 1 = 11 / x Cross multiply and 0.913545458 x = 11 x =
Directrix
  • Directrix
Divide 11 by ..... what
anonymous
  • anonymous
uhmm 0.913545458
Directrix
  • Directrix
and the result is the value of x. What is x?
anonymous
  • anonymous
so equals 12.04099905885581
anonymous
  • anonymous
x = that lol
anonymous
  • anonymous
what's that rounded?
Directrix
  • Directrix
That is correct. The hypotenuse is the longest side of a right triangle. That is a big clue that your first answer was wrong.
Directrix
  • Directrix
Rounded to how many places?
anonymous
  • anonymous
Wow, thanks for the help.. i can't possibly thank you enough. You're a huge help! thanks for taking the time to answer and help me c:
anonymous
  • anonymous
to the nearest tenth
Directrix
  • Directrix
For the nearest tenth, go to one place farther. If the digit in the hundredths slot is 5 or more round up the digit in the tenths slot. So what do you think the result will be?
anonymous
  • anonymous
12.040?
Directrix
  • Directrix
12.04 is what we are working with
anonymous
  • anonymous
ooh so its 12.04.. x = 12.04?
Directrix
  • Directrix
0 is in the tenths slot.
Directrix
  • Directrix
Is the digit in the hundredths slot equal to 5 or more?
anonymous
  • anonymous
no its not
Directrix
  • Directrix
Then, to the nearest tenth, the answer is 12.0
anonymous
  • anonymous
x = 12.0?
Directrix
  • Directrix
Yes, it does to the nearest tenth
anonymous
  • anonymous
thank you so much for the help. really. thank you!!!!! you deserve 120124125 medals lol.
Directrix
  • Directrix
Glad to help

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