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Question

apter Contents D Pearson eText , viz InterContinental Hotel C New Tab .instructure.com/courses/72932/discussion topics/1068040?module item_id-3864131 Discussions Module 3- Discussion: Application PIN Problems This is a graded discussion: 100 points possible Module 3 Discussion: Application PIN Problems Projected Picture The area of a projected picture on a movie screen varies directly as the square of the distance from the projector to the screen It a distance of 20 feet produces a picture with an area of dlel square feet, what distance produces an area of 1lajo square feet? Round to the nearest tenth of a foot. Note: if lal-2. then 1lalo-120 teet and it (cl-8. then 6ic) 68 fee

Explanation / Answer

Solution :

Area and distance are in proportion.

Therefore

A1/A2 = D1/D2

Hence

68/120 = 20/D2

68/120= 20/D2

D2 = 20×120/68

D2= 35.3 feet

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