The second skater wont pass him, he is ahead and they are going the same speed
X - distance between Jie and Xiaoqing.
Y = 2 x + 18 i think thats the answer :D
Marie because if you put a 0 behind .4 that equals .40 and then you compare .25 and .40 therefore .25 is closer
It would be helpful if a figure is drawn as you can see clearly the situation of the problem. We would see that a right triangle is made where the angle between the elevation of the airplane with respect to the ground is 7 degrees and the horizontal distance is the base of the triangle. We use trigonemetric functions.
tan 7 = opposite side / adjacent = height / 3729
height = 458 meters
