Exam (elaborations)
UH Manoa - PH 210 (E. Hurwitz) - Quiz 2
- Course
- PH 210
- Institution
- Pennsylvania State University - All Campuses
UH Manoa - PH 210 (E. Hurwitz) - Quiz 2
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lOMoARcPSD|22014731UH Manoa - PH 210 ( E. Hurwitz) - Quiz 2 Use the indicated letters to represent the variables and write an equation that gives the functional relationship between the variables:
The number of words N a typist can type and the number of minutes M spent typing if he or she can type 86 words per minute .... - correct answers N = 86M
Use the indicated letters to represent the variables and write an equation that gives the functional relationship between the variables:
The length in inches i of a fence that is m meters long (one inch is equivalent to 0.0254 meters) .... - correct answers I = 0.0254M
Use the indicated letters to represent the variables and write an equation that gives the functional relationship between the variables:
The cost C per candy bar when a child buys three candy bars and pays D dollars: - correct answers D = 3C
Widescreen television screens have a width-to height ratio of 16:9. Manufacturers give the size of a television by the length of its diagonal. For example, a 73.6-inch televisions is one with a diagonal measure of 73.6-inches.
Give the width of a 73.6-inch television screen. Round only your final answer to one decimal place. - correct answers w = 64.1 inches
[ w = width ]
[ h = height ]
[ w / h = ]
[ h = ]
[ c^2 = a^2 + b^2 (utilizing Pythagorean's Theorem) ]
[ d^2 = w^2 + (9/16w)^2 ]
[ d^2 = w^2 + ( (81/256) w^2 ) ]
[ d^2 = (1 + (81/256) w^2 ]
[ d^2 = (337/256) w^2 ]
[ d^2 = (337/256) w^2 ]
[ w^2 = (256/337) d^2 ]
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[ √(w^2) = √( (256/337) d^2 )
[ w = ( (√256) / √(337) ) d ]
[ w = ( 16 / √337 ) d ]
[ w = ( ( 16 / √337) d ) ]
[ d = 73.6 inches ]
[ w = ( ( 16 / √337) d ) ]
[ w = ( ( 16 / √337) (73.6) ) ]
[ w = (0.8715755371) (73.6) ]
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