Find the value for each of the following using calculator.Give your answer correct to two decimal places

Question

1.example: 3.5³ is between 3³ and 4³,that is 3.5³ is between 27 and 64.Thus,3.5³≈64

（a）2.6³

2.6³ is between 3³ and 4³,that is 2.6³ is between 27 and 64.Thus,2.6³≈27

2.example: ³∫36 is between ³∫27 and ³∫64,that is,³∫36 is between 3 and 4.Thus,³∫36≈3

（b）³∫84

³∫84 is between ³∫64 and ³∫125,that is,³∫84 is between 4 and 5.Thus,³∫84≈5

可以帮我检查答案吗？

Answer 1

1）2.6³ is between 2³ and 3³,that is        2.6³ is between 8 and 27. Thus,2.6³≈27

答案对but概念错

2）³∫84 is between ³∫64 and ³∫125,that is

³∫84 is between 4 and 5.

Thus,³∫84≈4.(因为84比较靠近64）

Answer 2

1. (a) 2.6³ is between 2³ and 3³ , that is 2.6³ is between 8 and 27. Thus, 2.6³ ≈ 27. ☑️

2. (b) ³∫84 is between ³∫64 and ³∫125,that is,³∫84 is between 4 and 5.Thus,³∫84≈5  ☑️

你的答案都对了，恭喜！o(^▽^)o