Exam 1: Real Numbers and Algebraic Expressions

List all the elements of B that belong to the given set. - B= $\left\{ 4 , \sqrt { 6 } , - 15,0 , \frac { 1 } { 2 } , - 2,5.5 , \sqrt { 4 } \right\}$ Whole numbers

Simplify. Write the answer using positive exponents only. - $\left( \frac { 6 x ^ { - 5 } y ^ { - 2 } z ^ { 4 } } { 2 x y ^ { - 2 } z ^ { - 4 } } \right) ^ { - 3 }$

Simplify the expression. - $\frac { 8 \cdot ( 8 - 6 ) + 8 \cdot 8 } { 8 \cdot ( 4 - 3 ) }$

Simplify and write with positive exponents only. - $\frac { 1 } { m ^ { - 5 } }$

Write the sentence as an equation. -Eight times x is 12 more than three times x .

Find the root. - $\sqrt { 25 }$

Simplify. - $\frac { 2 } { 3 } x - \frac { 1 } { 3 } - \frac { 1 } { 4 } x + \frac { 3 } { 4 }$

Evaluate the expression. - $( - 11 x ) ^ { 0 }$

Simplify. - 9 x-2 x-x-14

Find the root. - $\sqrt { \frac { 144 } { 400 } }$

Simplify. Write the answer using positive exponents only. - $\left( \frac { 9 x ^ { - 3 } y ^ { 3 } } { 3 x y ^ { - 3 } } \right) ^ { - 2 }$

Write the number in standard notation. - $9.0446 \times 10 ^ { - 7 }$

Add or subtract as indicated. --11+(-22)-10

Evaluate the expression. - $( 2 x + 6 ) ^ { 0 }$

Write the phrase as a variable expression. Use x to represent "a number." -111 less a number

Determine whether the statement is true or false. -All natural numbers are integers.

Write the number in standard notation. - $6.61 \times 10 ^ { 6 }$

Simplify. Assume that variables in the exponent represent nonzero integers and that all other variables are not 0. - $\left( \frac { x ^ { 2 } t } { x } \right) ^ { 4 }$

Place $\in$ Or $\notin$ in the space provided to make the statement true. - 0 _____{4,8,12, ... }

Simplify. - -12-(2 z-2)