1 pt
DOK: 1

1.

Simplify: $\sqrt{135}$

A

$3\sqrt{15}$

B

$\sqrt{72}$

C

$9\sqrt{15}$

D

$\sqrt{9}\times \sqrt{15}$

1 pt
DOK: 2

3.

Simplify: $\sqrt{44}\xb72\sqrt{33}$

A

$2\sqrt{77}$

B

$44\sqrt{3}$

C

$22\sqrt{7}$

D

$22\sqrt{12}$

1 pt
DOK: 1

5.

Simplify: $\sqrt[3]{40}$

A

$8\sqrt[3]{5}$

B

$\sqrt[3]{8}\times \sqrt[3]{5}$

C

$2\sqrt[3]{5}$

D

You cannot take the cube root of 40.

1 pt
DOK: 1

6.

Which of the following is a rational number?

A

$\sqrt{6}$

B

$2\mathrm{\pi}$

C

$\sqrt{196}$

D

$\sqrt{8}$

1 pt
DOK: 2

8.

Which of the following illustrates that a rational number multiplied by a rational number is rational?

A

$14\times 0.76=10.64$

B

$14\times 2\mathrm{\pi}=28\mathrm{\pi}$

C

$14\times \sqrt{2}=14\sqrt{2}$

D

$14\times 17=31$