example 1 evaluating square roots a.36= 66 because 2 b.64 – = –8 because (–8) 2 c. 4 25 2 5 =...
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![Page 1: EXAMPLE 1 Evaluating Square Roots a.36= 66 because 2 b.64 – = –8 because (–8) 2 c. 4 25 2 5 = because ( ) 2 5 2 d.0.81= 0.9 because (0.9) 2 = 0.81. 4 25](https://reader035.vdocument.in/reader035/viewer/2022071710/56649db25503460f94aa1df8/html5/thumbnails/1.jpg)
EXAMPLE 1 Evaluating Square Roots
a. 36 = 6 6because 2
b. 64– = –8 because (–8) 2
c. 425
25= because ( )2
5
2
d. 0.81 = 0.9 because (0.9)2 = 0.81.
425
= .
= 64 .
= 36 .
![Page 2: EXAMPLE 1 Evaluating Square Roots a.36= 66 because 2 b.64 – = –8 because (–8) 2 c. 4 25 2 5 = because ( ) 2 5 2 d.0.81= 0.9 because (0.9) 2 = 0.81. 4 25](https://reader035.vdocument.in/reader035/viewer/2022071710/56649db25503460f94aa1df8/html5/thumbnails/2.jpg)
EXAMPLE 2 Standardized Test Practice
SOLUTION
22
is closer to 9 or 10.
You can use a number line to approximate 95nearest whole number. Because
to theis between 9 and 10,
9595
you need to decide whetherFind 9.5. You can calculate that 9.5 = 90.25 and 95( )2= 95.
![Page 3: EXAMPLE 1 Evaluating Square Roots a.36= 66 because 2 b.64 – = –8 because (–8) 2 c. 4 25 2 5 = because ( ) 2 5 2 d.0.81= 0.9 because (0.9) 2 = 0.81. 4 25](https://reader035.vdocument.in/reader035/viewer/2022071710/56649db25503460f94aa1df8/html5/thumbnails/3.jpg)
EXAMPLE 2 Standardized Test Practice
95
95
As shown on the number line, is between 90.25 and 100 , so it has a value between 9.5 and 10. Therefore,
is closer to 10 than it is to 9.
95
ANSWER
To the nearest whole number, 10.The correct answer is C.
![Page 4: EXAMPLE 1 Evaluating Square Roots a.36= 66 because 2 b.64 – = –8 because (–8) 2 c. 4 25 2 5 = because ( ) 2 5 2 d.0.81= 0.9 because (0.9) 2 = 0.81. 4 25](https://reader035.vdocument.in/reader035/viewer/2022071710/56649db25503460f94aa1df8/html5/thumbnails/4.jpg)
GUIDED PRACTICE for Examples 1 and 2
Find or approximate the square root to the nearest integer.
1.
4
2. 0
ANSWER
4 = 2
ANSWER
0 0=
![Page 5: EXAMPLE 1 Evaluating Square Roots a.36= 66 because 2 b.64 – = –8 because (–8) 2 c. 4 25 2 5 = because ( ) 2 5 2 d.0.81= 0.9 because (0.9) 2 = 0.81. 4 25](https://reader035.vdocument.in/reader035/viewer/2022071710/56649db25503460f94aa1df8/html5/thumbnails/5.jpg)
GUIDED PRACTICE for Examples 1 and 2
Find or approximate the square root to the nearest integer.
3.
36–
4. 81–
ANSWER
= –636–
ANSWER
81– = –9
![Page 6: EXAMPLE 1 Evaluating Square Roots a.36= 66 because 2 b.64 – = –8 because (–8) 2 c. 4 25 2 5 = because ( ) 2 5 2 d.0.81= 0.9 because (0.9) 2 = 0.81. 4 25](https://reader035.vdocument.in/reader035/viewer/2022071710/56649db25503460f94aa1df8/html5/thumbnails/6.jpg)
GUIDED PRACTICE for Examples 1 and 2
Find or approximate the square root to the nearest integer.
5.
23
6. 41
ANSWER
41 = 6
ANSWER
=23 5
![Page 7: EXAMPLE 1 Evaluating Square Roots a.36= 66 because 2 b.64 – = –8 because (–8) 2 c. 4 25 2 5 = because ( ) 2 5 2 d.0.81= 0.9 because (0.9) 2 = 0.81. 4 25](https://reader035.vdocument.in/reader035/viewer/2022071710/56649db25503460f94aa1df8/html5/thumbnails/7.jpg)
GUIDED PRACTICE for Examples 1 and 2
Find or approximate the square root to the nearest integer.
7.
2581
8. 0.36
ANSWER
= 1 2581
ANSWER
0.36 = 1