I need some help please and thanks again
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Mathematics, 21.06.2019 20:30
Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters
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Mathematics, 21.06.2019 22:00
Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of
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Mathematics, 21.06.2019 23:00
Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer
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Mathematics, 18.12.2019 01:31
Mathematics, 18.12.2019 01:31
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Spanish, 18.12.2019 02:31
Mathematics, 18.12.2019 02:31
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Mathematics, 18.12.2019 02:31
English, 18.12.2019 02:31
Mathematics, 18.12.2019 02:31