Chapter 2
Elementary Algebra · 414 exercises
Problem 1
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{2}{7}+\frac{3}{7}$$
4 step solution
Problem 1
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ 2^{6} $$
7 step solution
Problem 1
Reduce each fraction to lowest terms. $$\frac{8}{12}$$
4 step solution
Problem 2
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{3}{11}+\frac{5}{11}$$
4 step solution
Problem 2
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ 2^{7} $$
4 step solution
Problem 2
Reduce each fraction to lowest terms. $$\frac{12}{16}$$
5 step solution
Problem 3
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{7}{9}-\frac{2}{9}$$
4 step solution
Problem 3
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ 3^{4} $$
6 step solution
Problem 3
Reduce each fraction to lowest terms. $$\frac{16}{24}$$
3 step solution
Problem 4
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{11}{13}-\frac{6}{13}$$
3 step solution
Problem 4
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ 4^{3} $$
4 step solution
Problem 4
Reduce each fraction to lowest terms. $$\frac{18}{32}$$
3 step solution
Problem 5
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{3}{4}+\frac{9}{4}$$
5 step solution
Problem 5
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ (-2)^{3} $$
5 step solution
Problem 5
Reduce each fraction to lowest terms. $$\frac{15}{9}$$
3 step solution
Problem 6
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{5}{6}+\frac{7}{6}$$
3 step solution
Problem 6
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ (-2)^{5} $$
5 step solution
Problem 6
Reduce each fraction to lowest terms. $$\frac{48}{36}$$
3 step solution
Problem 7
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{11}{12}-\frac{3}{12}$$
3 step solution
Problem 7
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ -3^{2} $$
3 step solution
Problem 7
Reduce each fraction to lowest terms. $$\frac{-8}{48}$$
4 step solution
Problem 8
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{13}{16}-\frac{7}{16}$$
4 step solution
Problem 8
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ -3^{4} $$
3 step solution
Problem 8
Reduce each fraction to lowest terms. $$\frac{-3}{15}$$
3 step solution
Problem 9
Perform the indicated operations. $$0.37+0.25$$
5 step solution
Problem 9
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{1}{8}-\frac{5}{8}$$
4 step solution
Problem 9
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ (-4)^{2} $$
4 step solution
Problem 9
Reduce each fraction to lowest terms. $$\frac{27}{-36}$$
3 step solution
Problem 10
Perform the indicated operations. $$7.2+4.9$$
5 step solution
Problem 10
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{2}{9}-\frac{5}{9}$$
5 step solution
Problem 10
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ (-5)^{4} $$
4 step solution
Problem 10
Reduce each fraction to lowest terms. $$\frac{9}{-51}$$
5 step solution
Problem 11
Perform the indicated operations. $$2.93-1.48$$
6 step solution
Problem 11
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{5}{24}+\frac{11}{24}$$
4 step solution
Problem 11
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ \left(\frac{2}{3}\right)^{4} $$
5 step solution
Problem 11
Reduce each fraction to lowest terms. $$\frac{-54}{-56}$$
4 step solution
Problem 12
Perform the indicated operations. $$14.36-5.89$$
8 step solution
Problem 12
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{7}{36}+\frac{13}{36}$$
4 step solution
Problem 12
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ \left(\frac{3}{4}\right)^{3} $$
3 step solution
Problem 12
Reduce each fraction to lowest terms. $$\frac{-24}{-80}$$
3 step solution
Problem 13
Perform the indicated operations. $$(7.6)+(-3.8)$$
4 step solution
Problem 13
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{8}{x}+\frac{7}{x}$$
4 step solution
Problem 13
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ -\left(\frac{1}{2}\right)^{3} $$
3 step solution
Problem 13
Reduce each fraction to lowest terms. $$\frac{24 x}{44 x}$$
3 step solution
Problem 14
Perform the indicated operations. $$(6.2)+(-2.4)$$
3 step solution
Problem 14
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{17}{y}+\frac{12}{y}$$
3 step solution
Problem 14
For Problems \(1-20\), find the value of each numerical expression. For example, \(2^{4}=2 \cdot 2 \cdot 2 \cdot 2=16\). $$ -\left(\frac{3}{2}\right)^{3} $$
3 step solution
Problem 14
Reduce each fraction to lowest terms. $$\frac{15 y}{25 y}$$
2 step solution
Problem 15
Perform the indicated operations. $$(-4.7)+1.4$$
4 step solution
Problem 15
Add or subtract as indicated, and express your answers in lowest terms. (Objective 1) $$\frac{5}{3 y}+\frac{1}{3 y}$$
4 step solution