1. in questions 18-1d, choose yes or no
to tell if the number 1/2 will make each
equation true.
1a. 1/18 + 1/2 = 10/18 yes or no
1b. 1/3 + 1/2 =1/5 yes or no
1c. 5/8 - 1/2 = 1/8 yes or no. 1d. 3/4 - 1/2 = 1/4 yes or no

An airplane is flying at an elevation of 5150 ft, directly above a straight highway. two motorists are driving cars on the highway on opposite sides of the plane, and the angle of depression to one car is 35 ̊ and to the other is 52 ̊. how far apart are the cars?