i can determine if a number is rational or irrational. 5... · ... i can determine if a number is...
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LT 1ab: I can estimate a square root and graph a square root on a number line.
Find each square root, plot its location on the number line, label it with its letter.
√ 11
LT1c: I can simplify square root expressions.
2√32
Unit 5 Test Review Name: _________________Hour: _______
5)
16 =
3 =
22 =
= 4 16√
5 =
18 =A.
B.
C.
D.
E.
F.
1) 2) 3) 4)√68 √ 90 √32
√ 486)√ 75 x27) 8)
For 14, estimate the square root to the nearest tenth. Must show work.
√
√ √ √
√
For 68, simplify the square root. Must show work.
Circle the irrational numbers.9)
LT 2ab: I can determine if a number is rational or irrational. I can classify the sum or product of rational and irrational numbers.
10) 11)
Simplify when x = 3. 15)
LT 3: I can simplify expressions containing grouping symbols. (square roots, fraction bar, absolute value)
10 + 8x
√ √ 2 8 + x
14) Simplify when x = 19.
16)
50 + x 20
Simplify when x = 15.
10 10
√121
√ 18
11 √√ 1 16 0.233
0 1217
π2
10.2
20
4 + 11
16 √
1000 √
12) 13)
49 + 4 √
16 3
17)
3 + 2√2 6
Simplify.
√
For 1013, identify each sum or product as rational or irrational.
√ √
√ √ √
4 = √3x 2
18)
8 + 3x = 102
y2 42 = 2 m2 + 9 = 5
LT 4: I can solve equations containing square roots and fraction bars.
Solve and check. Solve and check.19)
20) 21) Solve and check.(hint: there are two answers)Solve and check.
√37 3
x
24) Find the unknown side length.
x7
13
23) Find the unknown side length.
25) Hank leans a 12 foot ladder up on a wall. The base of a ladder is placed 3 feet from a wall. How high up the wall does the ladder reach?
picture: work:
LT 5: I can use Pythagorean Theorem to find the length of an unknown side length.
22) Is this a right triangle? Use math to prove your answer.
26)
picture: work:
LT 6: I can calculate the distance between two points using the distance formula.
27)
28)
x
y
(3 , 1) and (8 , 3)
A pool is 45 feet wide and 30 feet long. You swim diagonally across the pool. How far did you swim?
29) (7 , 6) and (1 , 4)
Find the distance between the 2 points.
For 2829, use the distance formula to find the distance between the 2 points.
Answers:1. ≈ 3.3
2. ≈ 8.2 or 8.3
3. ≈ 9.4 or 9.5
4. ≈ 5.6 or 5.7
6.
7.
8.
9.
4 3 √8 2 √
5 3 √x
√ 18 11 √π2 1000 √
10. Irrational
11. Rational
12. Rational
13. Irrational
14. ≈ 1.41
15. 15
16. 55
17. ≈ 9.9
18. x = 4
19. x = 12
20. y ≈ ± 6.3 (must have both answers)
21. no solution
22. no
23. x ≈ 14.76
24. x ≈ 5.29
25. ≈ 11.62 feet
26. ≈ 54.08 feet
27. ≈ 7.81
28. ≈ 5.39
29. ≈ 6.32
5.AB C D E F