Chapter 5
Algebra for College Students · 537 exercises
Problem 37
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \((2 \sqrt{6}+3 \sqrt{5})(\sqrt{8}-3 \sqrt{12})\)
3 step solution
Problem 37
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\sqrt{\frac{2 x}{5 y}}\)
4 step solution
Problem 37
Change each radical to simplest radical form. \(-\frac{5}{6} \sqrt{28}\)
3 step solution
Problem 37
Simplify each numerical expression. \(2^{-2}+3^{-2}\)
4 step solution
Problem 38
Use scientific notation and the properties of exponents to help you perform the following operations. \(\frac{66,000,000,000}{0.022}\)
4 step solution
Problem 38
Write each of the following in radical form. For example, \(3 x^{\frac{2}{3}}=3 \sqrt[3]{x^{2}}\). \((5 x+y)^{\frac{1}{3}}\)
4 step solution
Problem 38
Solve each equation. Don't forget to check each of your potential solutions. \(\sqrt{n+6}=n+6\)
5 step solution
Problem 38
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \((5 \sqrt{2}-4 \sqrt{6})(2 \sqrt{8}+\sqrt{6})\)
4 step solution
Problem 38
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\sqrt{\frac{3 x}{2 y}}\)
4 step solution
Problem 38
Change each radical to simplest radical form. \(-\frac{2}{3} \sqrt{96}\)
4 step solution
Problem 38
Simplify each numerical expression. \(2^{-4}+5^{-1}\)
3 step solution
Problem 39
Use scientific notation and the properties of exponents to help you perform the following operations. \(\frac{0.000064}{16,000}\)
5 step solution
Problem 39
Write each of the following in radical form. For example, \(3 x^{\frac{2}{3}}=3 \sqrt[3]{x^{2}}\). \((2 a-3 b)^{\frac{2}{3}}\)
3 step solution
Problem 39
Solve each equation. Don't forget to check each of your potential solutions. \(\sqrt{3 y}=y-6\)
4 step solution
Problem 39
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \((2 \sqrt{6}+5 \sqrt{5})(3 \sqrt{6}-\sqrt{5})\)
4 step solution
Problem 39
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\sqrt{\frac{5}{12 x^{4}}}\)
5 step solution
Problem 39
Change each radical to simplest radical form. \(\sqrt{\frac{19}{4}}\)
4 step solution
Problem 39
Simplify each numerical expression. \(\left(\frac{1}{3}\right)^{-1}-\left(\frac{2}{5}\right)^{-1}\)
3 step solution
Problem 40
Use scientific notation and the properties of exponents to help you perform the following operations. \(\frac{0.00072}{0.0000024}\)
5 step solution
Problem 40
Write each of the following in radical form. For example, \(3 x^{\frac{2}{3}}=3 \sqrt[3]{x^{2}}\). \((5 a+7 b)^{\frac{3}{5}}\)
3 step solution
Problem 40
Solve each equation. Don't forget to check each of your potential solutions. \(2 \sqrt{n}=n-3\)
5 step solution
Problem 40
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \((7 \sqrt{3}-\sqrt{7})(2 \sqrt{3}+4 \sqrt{7})\)
4 step solution
Problem 40
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\sqrt{\frac{7}{8 x^{2}}}\)
2 step solution
Problem 40
Change each radical to simplest radical form. \(\sqrt{\frac{22}{9}}\)
3 step solution
Problem 40
Simplify each numerical expression. \(\left(\frac{3}{2}\right)^{-1}-\left(\frac{1}{4}\right)^{-1}\)
4 step solution
Problem 41
Use scientific notation and the properties of exponents to help you perform the following operations. \(\frac{(60,000)(0.006)}{(0.0009)(400)}\)
6 step solution
Problem 41
Write each of the following in radical form. For example, \(3 x^{\frac{2}{3}}=3 \sqrt[3]{x^{2}}\). \(x^{\frac{2}{3}} y^{\frac{1}{3}}\)
4 step solution
Problem 41
Solve each equation. Don't forget to check each of your potential solutions. \(4 \sqrt{x}+5=x\)
6 step solution
Problem 41
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \((3 \sqrt{2}-5 \sqrt{3})(6 \sqrt{2}-7 \sqrt{3})\)
3 step solution
Problem 41
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\frac{5}{\sqrt{18 y}}\)
5 step solution
Problem 41
Change each radical to simplest radical form. \(\sqrt{\frac{27}{16}}\)
4 step solution
Problem 41
Simplify each numerical expression. \(\left(2^{-3}+3^{-2}\right)^{-1}\)
4 step solution
Problem 42
Use scientific notation and the properties of exponents to help you perform the following operations. \(\frac{(0.00063)(960,000)}{(3,200)(0.0000021)}\)
6 step solution
Problem 42
Write each of the following in radical form. For example, \(3 x^{\frac{2}{3}}=3 \sqrt[3]{x^{2}}\). \(x^{\frac{3}{7}} y^{\frac{5}{7}}\)
4 step solution
Problem 42
Solve each equation. Don't forget to check each of your potential solutions. \(\sqrt{-x}-6=x\)
7 step solution
Problem 42
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \((\sqrt{8}-3 \sqrt{10})(2 \sqrt{8}-6 \sqrt{10})\)
5 step solution
Problem 42
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\frac{3}{\sqrt{12 x}}\)
4 step solution
Problem 42
Change each radical to simplest radical form. \(\sqrt{\frac{8}{25}}\)
4 step solution
Problem 42
Simplify each numerical expression. \(\left(5^{-1}-2^{-3}\right)^{-1}\)
3 step solution
Problem 43
Use scientific notation and the properties of exponents to help you perform the following operations. \(\frac{(0.0045)(60,000)}{(1800)(0.00015)}\)
6 step solution
Problem 43
Write each of the following in radical form. For example, \(3 x^{\frac{2}{3}}=3 \sqrt[3]{x^{2}}\). \(-3 x^{\frac{1}{5}} y^{\frac{2}{5}}\)
5 step solution
Problem 43
Solve each equation. Don't forget to check each of your potential solutions. \(\sqrt[3]{x-2}=3\)
4 step solution
Problem 43
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \((\sqrt{6}+4)(\sqrt{6}-4)\)
6 step solution
Problem 43
Express each of the following in simplest radical form. All variables represent positive real numbers. \(\frac{\sqrt{7 x}}{\sqrt{8 y^{5}}}\)
4 step solution
Problem 43
Change each radical to simplest radical form. \(\sqrt{\frac{75}{81}}\)
6 step solution
Problem 43
For Problems \(43-62\), simplify each expression. Express final results without using zero or negative integers as exponents. \(x^{2} \cdot x^{-8}\)
3 step solution
Problem 44
Use scientific notation and the properties of exponents to help you perform the following operations. \(\frac{(0.00016)(300)(0.028)}{0.064}\)
4 step solution
Problem 44
Write each of the following in radical form. For example, \(3 x^{\frac{2}{3}}=3 \sqrt[3]{x^{2}}\). \(-4 x^{\frac{3}{4}} y^{\frac{1}{4}}\)
3 step solution
Problem 44
Solve each equation. Don't forget to check each of your potential solutions. \(\sqrt[3]{x+1}=4\)
4 step solution
Problem 44
Find the following products and express answers in simplest radical form. All variables represent nonnegative real numbers. \((\sqrt{7}-2)(\sqrt{7}+2)\)
4 step solution