I still need help in understanding the steps to solve the word problem below. I
ID: 2920591 • Letter: I
Question
I still need help in understanding the steps to solve the word problem below. I appreciate the first answer posted for this but I'm still having difficutly understanding. If someone could write down each step clearly (to see how each answer was arrived at), so I may have a clearer understanding. I appreciate any and all help. Thank you.
A plane travels at a bearing of 49.5 degrees from point A for 79.4 mi. The plane then travels for 124.6mi at a bearing of 149.3 degrees. How far is the plane from point A?
Explanation / Answer
distance travelled = 79.4(cos49.5 i + sin49.5 j) + 124.6(cos149.3 i + sin149.3 j)
= (51.566175 - 107.137593) i + (60.376234 + 63.613647) j
= -55.571418 i + 123.98988 j
distance from A = sqrt((55.571418)2 + (123.98988)2) = 135.8737 mi