Chapter 5
Algebra for College Students · 537 exercises
Problem 23
Evaluate each numerical expression. \(\left(\frac{1}{8}\right)^{-\frac{2}{3}}\)
5 step solution
Problem 23
Solve each equation. Don't forget to check each of your potential solutions. \(\sqrt{3 x-2}-\sqrt{x+4}=0\)
4 step solution
Problem 23
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \(3 \sqrt{x}(5 \sqrt{2}+\sqrt{y})\)
4 step solution
Problem 23
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\sqrt{75 x^{2}}\)
4 step solution
Problem 23
Change each radical to simplest radical form. \(\sqrt{32}\)
4 step solution
Problem 23
Simplify each numerical expression. \(\left(5^{3}\right)^{-1}\)
3 step solution
Problem 24
For Problems \(19-32\), write each of the following in ordinary decimal notation. For example, \((3.18)(10)^{2}=318\). \((7)(10)^{9}\)
5 step solution
Problem 24
Evaluate each numerical expression. \(\left(-\frac{1}{27}\right)^{-\frac{2}{3}}\)
5 step solution
Problem 24
Solve each equation. Don't forget to check each of your potential solutions. \(\sqrt{7 x-6}-\sqrt{5 x+2}=0\)
4 step solution
Problem 24
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \(\sqrt{2 x}(3 \sqrt{y}-7 \sqrt{5})\)
3 step solution
Problem 24
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\sqrt{108 y^{2}}\)
5 step solution
Problem 24
Change each radical to simplest radical form. \(\sqrt{98}\)
3 step solution
Problem 24
Simplify each numerical expression. \(\left(3^{-1}\right)^{3}\)
3 step solution
Problem 25
For Problems \(19-32\), write each of the following in ordinary decimal notation. For example, \((3.18)(10)^{2}=318\). \((3.14)(10)^{10}\)
5 step solution
Problem 25
Evaluate each numerical expression. \(64^{-\frac{7}{6}}\)
6 step solution
Problem 25
Solve each equation. Don't forget to check each of your potential solutions. \(5 \sqrt{t-1}=6\)
4 step solution
Problem 25
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \(\sqrt{x y}(5 \sqrt{x y}-6 \sqrt{x})\)
3 step solution
Problem 25
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\sqrt{20 x^{2} y}\)
3 step solution
Problem 25
Change each radical to simplest radical form. \(\sqrt{80}\)
3 step solution
Problem 25
Simplify each numerical expression. \(\left(2^{3} \cdot 3^{-2}\right)^{-1}\)
5 step solution
Problem 26
For Problems \(19-32\), write each of the following in ordinary decimal notation. For example, \((3.18)(10)^{2}=318\). \((2.04)(10)^{12}\)
5 step solution
Problem 26
Evaluate each numerical expression. \(32^{-\frac{4}{5}}\)
4 step solution
Problem 26
Solve each equation. Don't forget to check each of your potential solutions. \(4 \sqrt{t+3}=6\)
4 step solution
Problem 26
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \(4 \sqrt{x}(2 \sqrt{x y}+2 \sqrt{x})\)
6 step solution
Problem 26
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\sqrt{80 x y^{2}}\)
4 step solution
Problem 26
Change each radical to simplest radical form. \(\sqrt{125}\)
5 step solution
Problem 26
Simplify each numerical expression. \(\left(2^{-2} \cdot 3^{-1}\right)^{-3}\)
4 step solution
Problem 27
For Problems \(19-32\), write each of the following in ordinary decimal notation. For example, \((3.18)(10)^{2}=318\). \((4.3)(10)^{-1}\)
4 step solution
Problem 27
Evaluate each numerical expression. \(-25^{\frac{3}{2}}\)
4 step solution
Problem 27
Solve each equation. Don't forget to check each of your potential solutions. \(\sqrt{x^{2}+7}=4\)
4 step solution
Problem 27
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \(\sqrt{5 y}\left(\sqrt{8 x}+\sqrt{12 y^{2}}\right)\)
4 step solution
Problem 27
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\sqrt{64 x^{3} y^{7}}\)
5 step solution
Problem 27
Change each radical to simplest radical form. \(\sqrt{160}\)
3 step solution
Problem 27
Simplify each numerical expression. \(\left(4^{2} \cdot 5^{-1}\right)^{2}\)
3 step solution
Problem 28
Write each of the following in ordinary decimal notation. For example, \((3.18)(10)^{2}=318\). \((5.2)(10)^{-2}\)
3 step solution
Problem 28
Evaluate each numerical expression. \(-16^{\frac{3}{4}}\)
5 step solution
Problem 28
Solve each equation. Don't forget to check each of your potential solutions. \(\sqrt{x^{2}+3}-2=0\)
5 step solution
Problem 28
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \(\sqrt{2 x}(\sqrt{12 x y}-\sqrt{8 y})\)
4 step solution
Problem 28
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\sqrt{36 x^{5} y^{6}}\)
4 step solution
Problem 28
Change each radical to simplest radical form. \(\sqrt{112}\)
3 step solution
Problem 28
Simplify each numerical expression. \(\left(2^{-3} \cdot 4^{-1}\right)^{-1}\)
5 step solution
Problem 29
Write each of the following in ordinary decimal notation. For example, \((3.18)(10)^{2}=318\). \((9.14)(10)^{-4}\)
3 step solution
Problem 29
Evaluate each numerical expression. \(125^{\frac{4}{3}}\)
5 step solution
Problem 29
Solve each equation. Don't forget to check each of your potential solutions. \(\sqrt{x^{2}+13 x+37}=1\)
5 step solution
Problem 29
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \(5 \sqrt{3}(2 \sqrt{8}-3 \sqrt{18})\)
4 step solution
Problem 29
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\sqrt{54 a^{4} b^{3}}\)
4 step solution
Problem 29
Change each radical to simplest radical form. \(4 \sqrt{18}\)
6 step solution
Problem 29
Simplify each numerical expression. \(\left(\frac{2^{-1}}{5^{-2}}\right)^{-1}\)
4 step solution
Problem 30
Write each of the following in ordinary decimal notation. For example, \((3.18)(10)^{2}=318\). \((8.76)(10)^{-5}\)
4 step solution
Problem 30
Evaluate each numerical expression. \(81^{\frac{5}{4}}\)
5 step solution