Swered Question 10
0/10 pts
A pilot flying at an altitude of 1.5 km sights the runway directly in
front of her. The angle of depression to the beginning of the runway
is 42°. The angle of depression to the end of the runway is 25°.
What is the length of the runway? Round to the nearest hundredth
if needed.

step-by-step explanation:

4x and 6y

im not sure though

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional