Chapter 5
Intermediate Algebra · 542 exercises
Problem 1
For Problems \(1-18\), write each of the following in scientific notation. For example, $$ 27,800=(2.78)\left(10^{4}\right) $$ 89
4 step solution
Problem 1
For Problems \(1-30\), evaluate each numerical expression. $$ 81^{\frac{1}{2}} $$
3 step solution
Problem 1
For Problems 1-56, solve each equation. Don't forget to check each of your potential solutions. $$ \sqrt{5 x}=10 $$
4 step solution
Problem 1
For Problems \(1-14\), multiply and simplify where possible. $$ \sqrt{6} \sqrt{12} $$
3 step solution
Problem 1
For Problems \(1-20\), use the distributive property to help simplify each of the following. For example, $$ \begin{aligned} 3 \sqrt{8}-\sqrt{32} &=3 \sqrt{4} \sqrt{2}-\sqrt{16} \sqrt{2} \\ &=3(2) \sqrt{2}-4 \sqrt{2} \\ &=6 \sqrt{2}-4 \sqrt{2} \\ &=(6-4) \sqrt{2}=2 \sqrt{2} \end{aligned} $$ $$ 5 \sqrt{18}-2 \sqrt{2} $$
4 step solution
Problem 1
Evaluate each of the following. For example, \(\sqrt{25}=5\). \(\sqrt{64}\)
5 step solution
Problem 1
Simplify each numerical expression. \(3^{-3}\)
3 step solution
Problem 2
For Problems \(1-18\), write each of the following in scientific notation. 117
5 step solution
Problem 2
For Problems \(1-30\), evaluate each numerical expression. $$ 64^{\frac{1}{2}} $$
4 step solution
Problem 2
For Problems 1-56, solve each equation. Don't forget to check each of your potential solutions. $$ \sqrt{3 x}=9 $$
4 step solution
Problem 2
For Problems \(1-14\), multiply and simplify where possible. $$ \sqrt{8} \sqrt{6} $$
2 step solution
Problem 2
For Problems \(1-20\), use the distributive property to help simplify each of the following. For example, $$ \begin{aligned} 3 \sqrt{8}-\sqrt{32} &=3 \sqrt{4} \sqrt{2}-\sqrt{16} \sqrt{2} \\ &=3(2) \sqrt{2}-4 \sqrt{2} \\ &=6 \sqrt{2}-4 \sqrt{2} \\ &=(6-4) \sqrt{2}=2 \sqrt{2} \end{aligned} $$ $$ 7 \sqrt{12}+4 \sqrt{3} $$
4 step solution
Problem 2
Evaluate each of the following. For example, \(\sqrt{25}=5\). \(\sqrt{49}\)
4 step solution
Problem 2
Simplify each numerical expression. \(2^{-4}\)
4 step solution
Problem 3
For Problems \(1-18\), write each of the following in scientific notation. 4290
5 step solution
Problem 3
For Problems \(1-30\), evaluate each numerical expression. $$ 27^{\frac{1}{3}} $$
2 step solution
Problem 3
For Problems 1-56, solve each equation. Don't forget to check each of your potential solutions. $$ \sqrt{2 x}+4=0 $$
4 step solution
Problem 3
For Problems \(1-14\), multiply and simplify where possible. $$ (3 \sqrt{3})(2 \sqrt{6}) $$
4 step solution
Problem 3
For Problems \(1-20\), use the distributive property to help simplify each of the following. For example, $$ \begin{aligned} 3 \sqrt{8}-\sqrt{32} &=3 \sqrt{4} \sqrt{2}-\sqrt{16} \sqrt{2} \\ &=3(2) \sqrt{2}-4 \sqrt{2} \\ &=6 \sqrt{2}-4 \sqrt{2} \\ &=(6-4) \sqrt{2}=2 \sqrt{2} \end{aligned} $$ $$ 7 \sqrt{12}+10 \sqrt{48} $$
3 step solution
Problem 3
Evaluate each of the following. For example, \(\sqrt{25}=5\). \(-\sqrt{100}\)
3 step solution
Problem 3
Simplify each numerical expression. \(-10^{-2}\)
4 step solution
Problem 4
For Problems \(1-18\), write each of the following in scientific notation. 812,000
4 step solution
Problem 4
For Problems \(1-30\), evaluate each numerical expression. $$ (-32)^{\frac{1}{5}} $$
4 step solution
Problem 4
For Problems 1-56, solve each equation. Don't forget to check each of your potential solutions. $$ \sqrt{4 x}+5=0 $$
3 step solution
Problem 4
For Problems \(1-14\), multiply and simplify where possible. $$ (5 \sqrt{2})(3 \sqrt{12}) $$
6 step solution
Problem 4
For Problems \(1-20\), use the distributive property to help simplify each of the following. For example, $$ \begin{aligned} 3 \sqrt{8}-\sqrt{32} &=3 \sqrt{4} \sqrt{2}-\sqrt{16} \sqrt{2} \\ &=3(2) \sqrt{2}-4 \sqrt{2} \\ &=6 \sqrt{2}-4 \sqrt{2} \\ &=(6-4) \sqrt{2}=2 \sqrt{2} \end{aligned} $$ $$ 6 \sqrt{8}-5 \sqrt{18} $$
4 step solution
Problem 4
Evaluate each of the following. For example, \(\sqrt{25}=5\). \(-\sqrt{81}\)
3 step solution
Problem 4
Simplify each numerical expression. \(10^{-3}\)
4 step solution
Problem 5
For Problems \(1-18\), write each of the following in scientific notation. \(6,120,000\)
4 step solution
Problem 5
For Problems \(1-30\), evaluate each numerical expression. $$ (-8)^{\frac{1}{3}} $$
4 step solution
Problem 5
For Problems 1-56, solve each equation. Don't forget to check each of your potential solutions. $$ 2 \sqrt{n}=5 $$
4 step solution
Problem 5
For Problems \(1-14\), multiply and simplify where possible. $$ (4 \sqrt{2})(-6 \sqrt{5}) $$
3 step solution
Problem 5
For Problems \(1-20\), use the distributive property to help simplify each of the following. For example, $$ \begin{aligned} 3 \sqrt{8}-\sqrt{32} &=3 \sqrt{4} \sqrt{2}-\sqrt{16} \sqrt{2} \\ &=3(2) \sqrt{2}-4 \sqrt{2} \\ &=6 \sqrt{2}-4 \sqrt{2} \\ &=(6-4) \sqrt{2}=2 \sqrt{2} \end{aligned} $$ $$ -2 \sqrt{50}-5 \sqrt{32} $$
5 step solution
Problem 5
Evaluate each of the following. For example, \(\sqrt{25}=5\). \(\sqrt[3]{27}\)
4 step solution
Problem 5
Simplify each numerical expression. \(\frac{1}{3^{-4}}\)
4 step solution
Problem 6
For Problems \(1-18\), write each of the following in scientific notation. \(72,400,000\)
4 step solution
Problem 6
For Problems \(1-30\), evaluate each numerical expression. $$ \left(-\frac{27}{8}\right)^{\frac{1}{3}} $$
4 step solution
Problem 6
For Problems 1-56, solve each equation. Don't forget to check each of your potential solutions. $$ 5 \sqrt{n}=3 $$
3 step solution
Problem 6
For Problems \(1-14\), multiply and simplify where possible. $$ (-7 \sqrt{3})(2 \sqrt{5}) $$
4 step solution
Problem 6
For Problems \(1-20\), use the distributive property to help simplify each of the following. For example, $$ \begin{aligned} 3 \sqrt{8}-\sqrt{32} &=3 \sqrt{4} \sqrt{2}-\sqrt{16} \sqrt{2} \\ &=3(2) \sqrt{2}-4 \sqrt{2} \\ &=6 \sqrt{2}-4 \sqrt{2} \\ &=(6-4) \sqrt{2}=2 \sqrt{2} \end{aligned} $$ $$ -2 \sqrt{20}-7 \sqrt{45} $$
4 step solution
Problem 6
Evaluate each of the following. For example, \(\sqrt{25}=5\). \(\sqrt[3]{216}\)
4 step solution
Problem 6
Simplify each numerical expression. \(\frac{1}{2^{-6}}\)
4 step solution
Problem 7
For Problems \(1-18\), write each of the following in scientific notation. \(40,000,000\)
4 step solution
Problem 7
For Problems 1-56, solve each equation. Don't forget to check each of your potential solutions. $$ 3 \sqrt{n}-2=0 $$
4 step solution
Problem 7
For Problems \(1-14\), multiply and simplify where possible. $$ (-3 \sqrt{3})(-4 \sqrt{8}) $$
3 step solution
Problem 7
For Problems \(1-20\), use the distributive property to help simplify each of the following. For example, $$ \begin{aligned} 3 \sqrt{8}-\sqrt{32} &=3 \sqrt{4} \sqrt{2}-\sqrt{16} \sqrt{2} \\ &=3(2) \sqrt{2}-4 \sqrt{2} \\ &=6 \sqrt{2}-4 \sqrt{2} \\ &=(6-4) \sqrt{2}=2 \sqrt{2} \end{aligned} $$ $$ 3 \sqrt{20}-\sqrt{5}-2 \sqrt{45} $$
5 step solution
Problem 7
Evaluate each of the following. For example, \(\sqrt{25}=5\). \(\sqrt[3]{-64}\)
4 step solution
Problem 7
Simplify each numerical expression. \(-\left(\frac{1}{3}\right)^{-3}\)
5 step solution
Problem 8
For Problems \(1-18\), write each of the following in scientific notation. \(500,000,000\)
3 step solution
Problem 8
For Problems 1-56, solve each equation. Don't forget to check each of your potential solutions. $$ 2 \sqrt{n}-7=0 $$
4 step solution