Mathematics, 26.06.2019 09:00 jahnoibenjamin
Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. identify any errors in his work or in his reasoning. write feedback to andrew explaining the mistake he made and how to correct his work. step work reasoning −4.5 + 4.2 + 5.6 − 7.3 original problem 1 −4.5 + 4.2 + 5.6 + (−7.3) additive inverse 2 −4.5 + (−7.3) + 4.2 + 5.6 commutative property 3 (−4.5 + (−7.3)) + (4.2 + 5.6) associative property 4 −11.8 + 9.8 simplify 5 −21.6 simplify
Answers: 2
Mathematics, 21.06.2019 19:30
Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.
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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
Answers: 1
Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. identify any errors in his work or...
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