Question

Independent activity 4
Ano po sagot

Answer 1

9514 1404 393

Answer:

A, B, C, E, D

F, G, H, I, J

Explanation:

You can go at this a couple of ways.

Consider the squares of number 1 through 9.

`\begin{array}{cccccccccc}n&1&2&3&4&5&6&7&8&9\\n^2&1&4&9&16&25&36&49&64&81\end{array}`

Then when the number under the radical is close to n², the root on the number line will be close to n.

The other way you can do this is to find the square root using your calculator.

• √10 ≈ 3.2 ⇒ A
• √35 ≈ 5.9 ⇒ B
• √48 ≈ 6.9 ⇒ C
• √71 ≈ 8.4 ⇒ E
• √54 ≈ 7.3 ⇒ D

• √19 ≈ 4.4 ⇒ F
• √89 ≈ 9.4 ⇒ G
• √6 ≈ 2.4 ⇒ H
• -√20 ≈ -4.5 ⇒ I
• -√2 ≈ -1.4 ⇒ J