Question 1

Find the following. Assume that the letter can represent any real number.
-$\sqrt { 9 x ^ { 2 } }$

Accepted Answer

A)  $9 x$ 
B)  $- 3 | x |$ 
C)  $3 | x |$ 
D)  $3 x$ 
A)  $9 x$ 
B)  $- 3 | x |$ 
C)  $3 | x |$ 
D)  $3 x$

Question 2

For the given function, find the indicated function value.
-For $g ( x ) = \sqrt { x ^ { 2 } - 20 }$, find $g ( 7 )$.

Accepted Answer

A)  $2 \sqrt { 30 }$ 
B)  $\sqrt { 30 }$ 
C)  $3 \sqrt { 29 }$ 
D)  $\sqrt { 29 }$ 
A)  $2 \sqrt { 30 }$ 
B)  $\sqrt { 30 }$ 
C)  $3 \sqrt { 29 }$ 
D)  $\sqrt { 29 }$

Question 3

Simplify.
-$\sqrt { 529 }$

Accepted Answer

A)  24 
B)  does not exist as a real number 
C)  23 
D)  264 
A)  24 
B)  does not exist as a real number 
C)  23 
D)  264

Question 4

Find the following. Assume that the letter can represent any real number.
-$\sqrt { \mathrm { x } ^ { 2 } }$

Accepted Answer

A)  $| x |$ 
B)  $x$ 
C)  $- | x |$ 
D)  $\left| x ^ { 2 } \right|$ 
A)  $| x |$ 
B)  $x$ 
C)  $- | x |$ 
D)  $\left| x ^ { 2 } \right|$

Question 5

For the given function, find the indicated function value.
-For $f ( x ) = \sqrt { 4 x - 14 }$, find $f ( 14 )$.

Accepted Answer

A)  $\sqrt { 43 }$ 
B)  $\sqrt { 41 }$ 
C)  $2 \sqrt { 41 }$ 
D)  $\sqrt { 42 }$ 
A)  $\sqrt { 43 }$ 
B)  $\sqrt { 41 }$ 
C)  $2 \sqrt { 41 }$ 
D)  $\sqrt { 42 }$

Question 6

Use a calculator to approximate to three decimal places.
-$\sqrt { 2.27 }$

Accepted Answer

A)  1 
B)  $1.507$ 
C)  $1.522$ 
D)  $1.494$ 
A)  1 
B)  $1.507$ 
C)  $1.522$ 
D)  $1.494$

Find the following. Assume that the letter can represent any real number. - $\sqrt { 9 x ^ { 2 } }$

For the given function, find the indicated function value. -For $g ( x ) = \sqrt { x ^ { 2 } - 20 }$ , find $g ( 7 )$ .

Simplify. - $\sqrt { 529 }$

Find the following. Assume that the letter can represent any real number. - $\sqrt { \mathrm { x } ^ { 2 } }$

For the given function, find the indicated function value. -For $f ( x ) = \sqrt { 4 x - 14 }$ , find $f ( 14 )$ .

Use a calculator to approximate to three decimal places. - $\sqrt { 2.27 }$

Introduction to Real Numbers and Algebraic Expressions

Solving Equations and Inequalities

Graphs of Linear Equations

Polynomials: Operations

Polynomials: Factoring

Rational Expressions and Equations

Graphs, Functions, and Applications

Systems of Equations

More on Inequalities

Quadratic Equations and Functions

Exponential Functions and Logarithmic Functions

Finding Measures of Central Tendency for Prices and Heights

Filters

Exam 10: Radical Expressions, Equations, and Functions

Find the following. Assume that the letter can represent any real number. - 9x2\sqrt { 9 x ^ { 2 } }9x2​

For the given function, find the indicated function value. -For g(x)=x2−20g ( x ) = \sqrt { x ^ { 2 } - 20 }g(x)=x2−20​ , find g(7)g ( 7 )g(7) .

Simplify. - 529\sqrt { 529 }529​

Find the following. Assume that the letter can represent any real number. - x2\sqrt { \mathrm { x } ^ { 2 } }x2​

For the given function, find the indicated function value. -For f(x)=4x−14f ( x ) = \sqrt { 4 x - 14 }f(x)=4x−14​ , find f(14)f ( 14 )f(14) .

Use a calculator to approximate to three decimal places. - 2.27\sqrt { 2.27 }2.27​