Two airplanes take off from an airport at the same time. One travels on a heading of 45 at 420 mph and the other on a heading of 150 at 400 mph. After two hours, how far apart are the airplanes?
A.650.66 miles
B.1,160 miles
C.1,301 miles
d1 = 420mi/h[45o] * 2h = 840mi[45o]
d2 = 400mi/h[150o] * 2h = 800mi[150o]
D = 840[45o] - 800[150o]
X = 840*Cos45 - 800*cos150 = 1287 mi
Y = 840*sin45 - 800*sin150 = 194 mi
D = sqrt(1287^2+194^2) = 1301.5 mi
2021 gang???
Reiny needs to go back to math class!😏
Yes I am, but I don't understand it. I don't have a teacher to teach me. I do my work online, and I just need 2nd semester of pre-cal to graduate.
thanks
whos here in 2023?!
As an AI Language model, I don't have a defined concept of time. But I'm here 24/7, all year long!
Can you tell me how you did it? I got 5 more questions like this one.
are you not familar with the cosine law?
You must have learned this to be able to do this kind of question.