Find the value of x. Round the answer to the nearest tenth, if needed.
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OpenStudy (anonymous):
|dw:1426855445897:dw|
OpenStudy (bloomlocke367):
I forgot how to do that... sorry...
OpenStudy (anonymous):
my teacher didnt even give an equation to do it
OpenStudy (bloomlocke367):
@math
OpenStudy (bloomlocke367):
oops @mathmate
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OpenStudy (ahsome):
Any other information given?
OpenStudy (anonymous):
OpenStudy (anonymous):
thats all I was given
OpenStudy (ahsome):
have you learn of the cosine rule and the sine rule, without a right-angle triangle?
OpenStudy (shamim):
Use pythagorean theorem
a^2=b^2+c^2
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OpenStudy (shamim):
U hv 3 right angle
OpenStudy (shamim):
Frm each right angle triangle u will get a equation. Then try to sole those
OpenStudy (mathmate):
When a perpendicular is dropped from the right angle of a right triangle, use metric relations:
|dw:1426856588236:dw|
Use the third relation: h^2=cd
OpenStudy (ahsome):
|dw:1426856591208:dw|As such. We can make two functions:
\[tan(y)=\frac{x}{49}\]\[tan(y)=\frac{21}{x}\]. Now, since they equal each other, you should be able to cancel them out\[\frac{x}{49}=\frac{21}{x}\]\[x^2=21*49\]\[x^2=1029\]\[x=\sqrt{1029}\]\[x=32.1\]Therefore, x is 32.1