6.1-6.2 Quiz B

Which expression is equivalent to

 $x^{0.5}$  ?

•  $0.5x$  

•  $\sqrt{x}$  

•  $x^2$  

•  $5x$  

Simplify

 $\frac{y^{\frac{3}{2}}}{y^{\frac{1}{2}}}$  

•  $y$  

•  $y^2$  

•  $\sqrt{y}$  

•  $\frac{1}{\sqrt{y}}$  

• None of these

Simplify

 $\left(x^{\frac{4}{3}}\right)^2$  

•  $x^{\frac{8}{3}}$  

•  $x^{\frac{8}{5}}$  

•  $x^{\frac{16}{9}}$  

•  $x^3$  

• none of these

Simplify

 $\sqrt{100x^6y^4}$  

•  $10xy$  

•  $\frac{1}{10x^3y^2}$  

•  $10x^3y^2$  

•  $10x^{12}y^8$  

What is the expression equal to?

 $9^{\frac{5}{2}}\cdot9^{-\frac{1}{2}}$  

(a)  

Rewrite using rational exponents.

 $\sqrt{x^7}$  

•  $x^{\frac{7}{2}}$  

•  $\frac{1}{x^{\frac{1}{7}}}$  

•  $-x^7$  

•  $x^{\frac{2}{7}}$  

Which of the expressions is equal to 3? Check ALL that apply.

• $9^{\frac{1}{2}}$

• $9^{0.5}$

• $\frac{1}{9^{-\frac{1}{2}}}$

• $81^{\frac{1}{4}}$

• $\sqrt{9x^{3\ }}$

Evaluate.

 $16^{\frac{3}{2}}$  

(a)  

Evaluate.

 $\frac{1}{25^{-\frac{1}{2}}}$  

(a)  

Evaluate.

 $27^{\frac{2}{3}}$  

(a)