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