Zhang walks in a straight line from the trail head at (0,0). He travels at an average rate of 3 mi/h in the direction 30° west of north. What are the coordinates of Zhang's location, relative to the trail head, after 4 hours? ​

¿Hablas español porque si puedes, soy capaz de contestar?

Step-by-step explanation:

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

a. she will receive a refund of $278.

step-by-step explanation: