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Rationalizing Denominators

Authored by Natalie Griffin

Mathematics

9th - 12th Grade

12 Questions

CCSS covered

Used 73+ times

Rationalizing Denominators
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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Rationalize the denominator:
 523\frac{\sqrt{5}}{2\sqrt{3}}  

 156\frac{\sqrt{15}}{6}  

 1518\frac{\sqrt{15}}{18}  

 536\frac{5\sqrt{3}}{6}  

 5318\frac{5\sqrt{3}}{18}  

Tags

CCSS.HSN.RN.A.2

CCSS.HSA.SSE.B.3

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Rationalize the denominator:
 7310\frac{7\sqrt{3}}{\sqrt{10}}  

 70310\frac{70\sqrt{3}}{10}  

 73100\frac{7\sqrt{3}}{100}  

 73010\frac{7\sqrt{30}}{10}  

 737\sqrt{3}  

Tags

CCSS.HSN.RN.A.2

CCSS.HSA.SSE.B.3

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 10+8731\frac{10+8\sqrt{7}}{\sqrt{31}}  

 322116\frac{3\sqrt{221}}{16}  

 831+1121731\frac{8\sqrt{31}+11\sqrt{217}}{31}  

 1031+821731\frac{10\sqrt{31}+8\sqrt{217}}{31}  

 1033+823133\frac{10\sqrt{33}+8\sqrt{231}}{33}  

Tags

CCSS.HSN.RN.A.2

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Multiply:
 (4+2)(42)\left(4+\sqrt{2}\right)\left(4-\sqrt{2}\right)  

 16216-\sqrt{2}  

 424-\sqrt{2}  

14

18

Tags

CCSS.HSN.RN.A.2

CCSS.HSA.SSE.A.2

CCSS.HSA.APR.A.1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the conjugate of:
 5+75+\sqrt{7}  

18

 5+75+\sqrt{7}  

 575-\sqrt{7}  

32

Tags

CCSS.HSN.CN.A.3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the conjugate of:
 326-3\sqrt{2}-6  

 32+6-3\sqrt{2}+6  

 32+63\sqrt{2}+6  

 632-6-3\sqrt{2}  

 236-2\sqrt{3}-6  

Tags

CCSS.HSN.CN.A.3

CCSS.HSN.CN.B.5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the conjugate of:
 8+368+3\sqrt{6}  

 8+368+3\sqrt{6}  

 3683\sqrt{6}-8  

 8368-3\sqrt{6}  

 36+83\sqrt{6}+8  

Tags

CCSS.HSN.CN.A.3

CCSS.HSN.CN.B.5

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