Ahmad is sitting in a movie theater, 19 meters from the screen. The angle of elevation from his line of sight to the top of the screen is 15, and the angle of depression from his line of sight to the bottom of the screen is 22 . Find the height of the entire screen.

560

step-by-step explanation:

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answer: 0.1,0.85

step-by-step explanation:

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for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: