Mathematics, 11.09.2019 16:30 lilspike420
Given that ∠a≅∠b , evelia conjectured that ∠a and ∠b are acute angles. which statement is a counterexample to evelia's conjecture?
(high school)
m∠a=114° and m∠b=170°
m∠a=126° and m∠b=126°
m∠a=30° and m∠b=40°
m∠a=45° and m∠b=45°
Answers: 1
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
Answers: 1
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