The findings 20/40 vision in the right eye implies that when Tina is standing at a distance of 20 feet away from the eye chart, she will be able to read with her right eye what a person with normal vision can read from a distance of 40 feet away from the eye chart. Also, Tina has got 20/20 vision in the left eye, this implies that when Tina stands 20 feet from the eye chart , she will be able to read with her left eye what a person with normal vision can read from 20 feet away with the left eye. In conclusion this implies that Tina has normal vision in her left eye but a decreased vision in her right eye.
This is the associative property of addition
Answer:
Charlie is incoerre
Step-by-step explanation:
Given that :
Line of sight to top of flagpole = 16 feets
Angle of elevation = 60°
The height of the flagpole :
Applying trigonometry to the drawing in the attached picture :
We use:
Sinα = opposite / hypotenus
This enables us to use the value of the hypotenus (line of sight) to obtain the missing height value (h)
Sin(60°) = h / 16
h = 16 * sin 60
h = 16 * 0.8660254
h = 13.856406
Hence flagpole is about 13.86 feets high
Charlie's reasoning is incorrect, the line of sight constitutes the hypotenus and not Adjacent and hence, shoul