An observer (O) spots a bird flying at a 42° angle from a line drawn horizontal to its nest. If the distance from the observer (O) to the bird (B) is 17,000 ft., how far is the bird (B) from its nest (N)?

Question

anonymous · Answer

11,375 feet
	12,633 feet
	14,862 feet
	15,307 feet

anonymous · Answer

I'll draw you another diagram. But first, do you understand what sine, cosine, and tangent are?

anonymous · Answer

yes i do!

anonymous · Answer

Perfect! Hold on one second I'm drawing it out

anonymous · Answer

|dw:1394407016022:dw|

anonymous · Answer

SO, we can use the cosine of 42 degrees to find x
cos42 = x(adjacent)/17,000(hypotenuse
cos42 times 17,000(hypot) = x!
So we use our cosine button and multiply it by 17,000 and we have our missing value

anonymous · Answer

I came to your second answer

anonymous · Answer

@mathhelpxx

anonymous · Answer

Okay awesome I got that too! thank you!!!!

anonymous · Answer

Sure thing!