sat2物理A science teacher measures the length of her car to be 3.46 m.What is the margin of error in her measurement?(A) ± 0.001 m (B) ± 0.005 m (C) ± 0.01 m (D) ± 0.05 m (E) ± 0.06 m C is not the correct answer.You should have selected D.Expl
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![sat2物理A science teacher measures the length of her car to be 3.46 m.What is the margin of error in her measurement?(A) ± 0.001 m (B) ± 0.005 m (C) ± 0.01 m (D) ± 0.05 m (E) ± 0.06 m C is not the correct answer.You should have selected D.Expl](/uploads/image/z/5093077-13-7.jpg?t=sat2%E7%89%A9%E7%90%86A+science+teacher+measures+the+length+of+her+car+to+be+3.46+m.What+is+the+margin+of+error+in+her+measurement%3F%28A%29+%C2%B1+0.001+m+%28B%29+%C2%B1+0.005+m+%28C%29+%C2%B1+0.01+m+%28D%29+%C2%B1+0.05+m+%28E%29+%C2%B1+0.06+m+C+is+not+the+correct+answer.You+should+have+selected+D.Expl)
sat2物理A science teacher measures the length of her car to be 3.46 m.What is the margin of error in her measurement?(A) ± 0.001 m (B) ± 0.005 m (C) ± 0.01 m (D) ± 0.05 m (E) ± 0.06 m C is not the correct answer.You should have selected D.Expl
sat2物理
A science teacher measures the length of her car to be 3.46 m.What is the margin of error in her measurement?
(A) ± 0.001 m
(B) ± 0.005 m
(C) ± 0.01 m
(D) ± 0.05 m
(E) ± 0.06 m
C is not the correct answer.You should have selected D.
Explanation
When reporting a measurement,the last digit is always uncertain,and can be off by as much as one-half the value of the second to last digit.In this case,the science teacher guessed the final 6,meaning that her car could really have a length anywhere between 3.41 m and 3.51 m.
求解释```
sat2物理A science teacher measures the length of her car to be 3.46 m.What is the margin of error in her measurement?(A) ± 0.001 m (B) ± 0.005 m (C) ± 0.01 m (D) ± 0.05 m (E) ± 0.06 m C is not the correct answer.You should have selected D.Expl
自然老师测量了她的汽车,长度为3.46米,她测量的误差是多少?