Chapter 2

Elementary Algebra · 512 exercises

Problem 49

Use the order of operations to simplify the quantities for the following problems. $$ 3^{2}+7 $$

2 step solution

Problem 49

Simplify using the commutative property of multiplication for the following problems. You need not use the distributive property. $$\left(\frac{1}{2}\right) d\left(\frac{1}{4}\right) e\left(\frac{1}{2}\right) a$$

4 step solution

Problem 49

Is every rational number an integer?

4 step solution

Problem 49

For the following problems, rewrite each phrase using algebraic notation. \((a+b)\) divided by \((a+4)\)

3 step solution

Problem 50

The temperature today in Los Angeles was eighty-two degrees. Represent this temperature by real number.

3 step solution

Problem 50

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ \frac{6^{4}}{6^{3}} $$

4 step solution

Problem 50

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \left(a b^{3} c^{2}\right)^{5}\left(a^{2} b^{2} c\right)^{2} $$

3 step solution

Problem 50

Use the order of operations to simplify the quantities for the following problems. $$ 4^{3}-18 $$

4 step solution

Problem 50

Can two rational numbers be added together to yield an integer? If so, give an example.

5 step solution

Problem 51

The temperature today in Marbelhead was six degrees below zero. Represent this temperature by real number.

2 step solution

Problem 51

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ \frac{2^{9}}{2^{4}} $$

4 step solution

Problem 51

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \frac{\left(6 a^{2} b^{8}\right)^{2}}{\left(3 a b^{5}\right)^{2}} $$

4 step solution

Problem 51

Use the order of operations to simplify the quantities for the following problems. $$ 5^{2}+2(40) $$

3 step solution

Problem 51

Simplify using the commutative property of multiplication for the following problems. You need not use the distributive property. $$1(x+2 y)(6+z) 9(3 x+5 y)$$

3 step solution

Problem 51

For the following problems, on the number line, how many units (intervals) are there bet ween? 0 and \(2 ?\)

3 step solution

Problem 51

For the following problems, introduce a variable (any letter will do) and use appropriate algebraic symbols to write the given statement. Five times a number, minus one, equals zero.

4 step solution

Problem 52

On the number line, how many units between -3 and \(2 ?\)

5 step solution

Problem 52

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ \frac{4^{16}}{4^{13}} $$

4 step solution

Problem 52

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \frac{\left(a^{3} b^{4}\right)^{6}}{\left(a^{4} b^{4}\right)^{3}} $$

3 step solution

Problem 52

Use the order of operations to simplify the quantities for the following problems. $$ 8^{2}+3+5(2+7) $$

5 step solution

Problem 52

For the following problems, use the distributive property to expand the quantities. $$2(y+9)$$

3 step solution

Problem 52

For the following problems, on the number line, how many units (intervals) are there bet ween? -5 and \(0 ?\)

3 step solution

Problem 52

For the following problems, introduce a variable (any letter will do) and use appropriate algebraic symbols to write the given statement. A number divided by six is greater than or equal to forty-four.

3 step solution

Problem 53

On the number line, how many units between -4 and \(0 ?\)

4 step solution

Problem 53

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ \frac{x^{5}}{x^{3}} $$

4 step solution

Problem 53

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \frac{\left(x^{6} y^{5}\right)^{3}}{\left(x^{2} y^{3}\right)^{5}} $$

5 step solution

Problem 53

Use the order of operations to simplify the quantities for the following problems. $$ 2^{5}+3(8+1) $$

5 step solution

Problem 53

For the following problems, use the distributive property to expand the quantities. $$b(r+5)$$

3 step solution

Problem 53

For the following problems, on the number line, how many units (intervals) are there bet ween? 0 and \(6 ?\)

3 step solution

Problem 53

For the following problems, introduce a variable (any letter will do) and use appropriate algebraic symbols to write the given statement. Sixteen minus twice a number equals five.

2 step solution

Problem 54

\(a+b=b+a\) is an illustration of the ____________ property of addition.

2 step solution

Problem 54

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ \frac{y^{4}}{y^{3}} $$

3 step solution

Problem 54

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \frac{\left(a^{8} b^{10}\right)^{3}}{\left(a^{7} b^{5}\right)^{3}} $$

2 step solution

Problem 54

Use the order of operations to simplify the quantities for the following problems. $$ 3^{4}+2^{4}(1+5)^{3} $$

4 step solution

Problem 54

For the following problems, use the distributive property to expand the quantities. $$m(u+a)$$

3 step solution

Problem 54

For the following problems, on the number line, how many units (intervals) are there bet ween? -8 and \(0 ?\)

4 step solution

Problem 54

Determine whether the statements for the following problems are true or false. $$6-4(4)(1) \leq 10$$

3 step solution

Problem 55

\(s t=t s\) is an illustration of the ______________ property of ______________.

3 step solution

Problem 55

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ \frac{y^{9}}{y^{4}} $$

3 step solution

Problem 55

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \frac{\left(m^{5} n^{6} p^{4}\right)^{4}}{\left(m^{4} n^{5} p\right)^{4}} $$

4 step solution

Problem 55

Use the order of operations to simplify the quantities for the following problems. $$ \left(6^{2}-4^{2}\right) \div 5 $$

3 step solution

Problem 55

For the following problems, use the distributive property to expand the quantities. $$k(j+1)$$

3 step solution

Problem 55

For the following problems, on the number line, how many units (intervals) are there bet ween? -3 and \(4 ?\)

4 step solution

Problem 55

Determine whether the statements for the following problems are true or false. $$5(4+2 \cdot 10) \geq 110$$

4 step solution

Problem 56

Use the commutative properties of addition and multiplication to write equivalent expressions for the following problems. $$ y+12 $$

3 step solution

Problem 56

Use the product rule and quotient rule of exponents to simplify the following problems. Assume that all bases are nonzero and that all exponents are whole numbers. $$ \frac{k^{16}}{k^{13}} $$

4 step solution

Problem 56

Use the power rules for exponents to simplify the following problems. Assume that all bases are nonzero and that all variable exponents are natural numbers. $$ \frac{\left(x^{8} y^{3} z^{2}\right)^{5}}{\left(x^{6} y z\right)^{6}} $$

4 step solution

Problem 56

Use the order of operations to simplify the quantities for the following problems. $$ 2^{2}\left(10-2^{3}\right) $$

3 step solution

Problem 56

For the following problems, use the distributive property to expand the quantities. $$x(2 y+5)$$

3 step solution

Problem 56

For the following problems, on the number line, how many units (intervals) are there bet ween? \(m\) and \(n, m>n ?\)

3 step solution

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