Free Printable Chinese New Year Holiday HW

1.

The lifetime of a battery is measured as 8.5 h, correct to the nearest 0.5 h. Which of the following CANNOT be the actual lifetime of the battery?

a)

8.2 h

b)

8.27 h

c)

8.51 h

d)

8.69 h

2.

The length of a table is measured as 500 cm, correct to 2 significant figures. What is the percentage error of the measured length?

a)

0.1%

b)

0.2%

c)

0.5%

d)

1%

3.

The length of a string is measured as 2.5 m and its relative error is 0.04. Find the maximum absolute error of the measurement.

a)

0.05 m

b)

0.1 m

c)

0.2 m

d)

0.5 m

4.

a)

A = 12, B = 3

b)

A = 4, B = 8

c)

A = -4, B = 8

d)

A = -4, B = 6

5.

a)

81 – 36a²

b)

36a² – 81

c)

18 – 12a²

d)

12a² – 18

6.

a)

b)

c)

d)

7.

a)

b)

c)

d)

8.

a)

b)

c)

d)

9.

a)

-2r

b)

6r

c)

-2r(2s – 3w)

d)

6r(2s – 3w)

10.

a)

b)

c)

d)

11.

a)

b)

c)

d)

12.

a)

b)

c)

d)

13.

(a)

14.

a)

b)

c)

d)

15.

a)

$25\degree$

b)

$26\degree$

c)

$27\degree$

d)

$28\degree$

16.

a)

$28\degree$

b)

$30\degree$

c)

$33\degree$

d)

$38\degree$

17.

a)

x = $45\degree$ ,

y = $53\degree$

b)

x = $49\degree$ ,

y = $52\degree$

c)

x = $51\degree$ ,

y = $50\degree$

d)

x = $51\degree$ ,

y = $51\degree$

18.

a)

△ABC $\cong$ △PQR

b)

△BAC $\cong$ △RPQ

c)

△CAB $\cong$ △PQR

d)

△CBA $\cong$ △QRP

19.

a)

x = 5, y = $103\degree$

b)

x = 5, y = $113\degree$

c)

x = 6, y = $103\degree$

d)

x = 6, y = $113\degree$

20.

a)

SSS

b)

SAS

c)

ASA

d)

AAS

21.

Prove that △ABC congruent to △CDE.

22.

Complete the table.

23.

Complete the following cumulative frequency table.

24.

(a)

Chinese New Year Holiday HW

Total questions: 24

Worksheet time: 48mins

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