Question

Please help I did not get what I was supposed to do

Answer 1

See below

Explanation:

`\sqrt[3]{49} = 3.65930571002 \approx3.66 \\ \\ so \: \sqrt[3]{49} should \: lie \: at \: 3.6 \: which \: \\ fall \: between \: 3 \: and \: 4.`

Actually Lin did a mistake, she obtained square root and not cube root.

Answer 2

Answer with Explanation:

• 
  `3√(49)` should be placed in-between 3 and 4 on the number line (a little bit approaching number 4). The cube root of 49 is 6.66. Therefore, it shouldn't be placed on number 7.

• Lin thought that she was asked to get the square root of 49, which looks like this:
  `√(49)`. Probably, she missed the number 3. It was actually asking for the cube root of 49. This is also the reason why she placed the dot on the number 7 because the square root of 49 is 7.