Lesson 10.5 Rationalizing Denominators & Numerators

Lesson 10.5 Rationalizing Denominators & Numerators

College Readiness Math

Multiple Choice

is called ?

• rationalizing the denominator

• the constant k.

Multiple Choice

Rationalize the denominator.

• $$\frac{5\sqrt[]{3}}{3}$$

• $$\frac{7\sqrt[]{5}}{3}$$

• $$\frac{2\sqrt[]{5}}{7}$$

• $$\frac{\sqrt[]{7}}{3}$$

Multiple Choice

Rationalize the denominator.

• $$\frac{21\sqrt[]{x}}{x}$$

• $$\frac{11\sqrt[]{x}}{3x}$$

• $$\frac{15\sqrt[]{x}}{2x}$$

• $$\frac{7\sqrt[]{x}}{2}$$

Multiple Choice

Rationalize the denominator.

• $$\frac{\sqrt[3]{9}}{12}$$

• $$\frac{\sqrt[3]{5}}{2}$$

• $$\frac{\sqrt[3]{2}}{8}$$

• $$\frac{\sqrt[3]{6}}{3}$$

Multiple Choice

The two expressions are called ?

• Conjugates

• Constrates

Multiple Choice

Rationalize the denominator.

• $$\frac{5\left(3\sqrt[]{5}-2\right)}{41}$$

• $$\frac{2\left(7\sqrt[]{7}-2\right)}{33}$$

• $$\frac{2\left(9\sqrt[]{3}-1\right)}{11}$$

Multiple Choice

is called ?

• rationalizing the denominator.

• rationalizing the conjugate.

Multiple Choice

Rationalize the numerator.

• $$\frac{11}{10\sqrt[]{5}}$$

• $$\frac{32}{16\sqrt[]{10}}$$

• $$\frac{17}{5\sqrt[]{10}}$$

Multiple Choice

Rationalize the numerator.

• $$\frac{x-9}{4\sqrt[]{x}+12c}$$

• $$-\frac{x-5}{2\sqrt[]{x}+6}$$

• $$\frac{x+1}{3\sqrt[]{x}+5}$$