Question

An airplane leaves an airport and flies due west 120 miles and then 150 miles in the direction S 39.17°W. How far is the plane from the airport (round to the nearest mile)?
PLEASE HELP I GIVE MEDALS

Answer 1

Need the work ... PLease help Im confused

Answer 2

Im really not sure :(
its in my segment about law of cosines

Answer 3

draw a diagram

Answer 4

This is the picture one sec

Answer 5

Here it is @artofspeed

Answer 6

thats correct

Answer 7

you gotta use cos law for this one

Answer 8

@artofspeed can you help me with the work .. I have to answer the question and sow work

Answer 9

do you know the law of cos

Answer 10

isnt it c^2 = a^2 +b^2

Answer 11

no, that's Pythagoras

Answer 12

Then no :(

Answer 13

or a2 + b2 - 2ab cos(C) = c2 ?

Answer 14

yesssssssssssssssss

Answer 15

here, the angle C is 39.17+90, and u have a, b, only c left to find, which is the answer

Answer 16

so a = 120 and b = 150 and angle C = 39.17+90

Answer 17

how do I do that @artofspeed ? ps thank you so far

Answer 18

replace them in a2 + b2 - 2ab cos(C) = c2 to find c

Answer 19

and c is the final answer

Answer 20

so I would have 120^2 + 150^2 -2(120)(150)cos(129.17)=c^2? @artofspeed

Answer 21

Hello??? ;( @artofspeed

Answer 22

yes, now find c

Answer 23

I kept getting something wrong ... Im not sure what to do now to find it ? @artofspeed im doing something wrong ...c an you walk me through it ?

Answer 24

I think I know the answer is 244 mi but I dont know how to explain it

Answer 25

do you have the solution for this problem

Answer 26

I have the answer but my I need the work so I know how I did it and Im not sure how to get c
@artofspeed

Answer 27

wait, did you get the correct answer or not..

Answer 28

@mathstudent55 anything yet ? I just got back