Chapter 4
Prealgebra · 432 exercises
Problem 8
Write each fraction as an expression using a negative exponent other than \(-1\) $$\frac{1}{8}$$
3 step solution
Problem 8
Find the GCF of each set of monomials. $$2 y, 10 y^{2}$$
5 step solution
Problem 8
Factor each monomial. $$4 c^{2}$$
4 step solution
Problem 8
Evaluate each expression. $$6^{3}$$
5 step solution
Problem 9
Write each fraction in simplest form. If the fraction is already in simplest form, write simplified. $$\frac{12 c}{15 d}$$
2 step solution
Problem 9
Express each number in standard form. $$4.24 \times 10^{2}$$
4 step solution
Problem 9
Find each product or quotient. Express using exponents. $$\frac{a^{10}}{a^{6}}$$
4 step solution
Problem 9
A unit of measure called a micron equals 0.001 millimeter. Write this number using a negative exponent.
5 step solution
Problem 9
Find the GCF of each set of monomials. $$14 n, 42 n^{3}$$
5 step solution
Problem 9
Factor each monomial. $$5 a^{2} b$$
5 step solution
Problem 9
Evaluate each expression. $$2 \cdot 5^{2}$$
2 step solution
Problem 10
Write each fraction in simplest form. If the fraction is already in simplest form, write simplified. $$\frac{24}{5 k}$$
3 step solution
Problem 10
Express each number in standard form. $$5.72 \times 10^{4}$$
4 step solution
Problem 10
In \(2005,\) an earthquake measuring 5 on the Richter scale struck the Philippines. Four days later, an earthquake of magnitude 3 struck Southern Alaska. How many times greater were the seismic waves in the Philippines than in Alaska?
3 step solution
Problem 10
Evaluate each expression if \(a=2\) and \(b=-3\) $$a^{-5}$$
4 step solution
Problem 10
Find the GCF of each set of monomials. $$36 a^{3} b, 56 a b^{2}$$
4 step solution
Problem 10
Factor each monomial. $$-70 x y z$$
3 step solution
Problem 10
Evaluate each expression if \(x=-2\) and \(y=4\) $$x^{3}-4$$
3 step solution
Problem 11
Write each fraction in simplest form. If the fraction is already in simplest form, write simplified. $$\frac{25 m n}{65 n}$$
3 step solution
Problem 11
Express each number in standard form. $$3.347 \times 10^{-1}$$
4 step solution
Problem 11
Find each product or quotient. Express using exponents. $$3^{3} \cdot 3^{2}$$
5 step solution
Problem 11
Evaluate each expression if \(a=2\) and \(b=-3\) $$b^{-3}$$
4 step solution
Problem 11
Factor each expression. $$3 n+9$$
3 step solution
Problem 11
Determine whether each number is prime or composite. $$21$$
5 step solution
Problem 11
Evaluate each expression if \(x=-2\) and \(y=4\) $$5(y-1)^{2}$$
4 step solution
Problem 12
Write each fraction in simplest form. If the fraction is already in simplest form, write simplified. $$\frac{3}{18}$$
3 step solution
Problem 12
Express each number in standard form. $$5.689 \times 10^{-3}$$
4 step solution
Problem 12
Find each product or quotient. Express using exponents. $$6 \cdot 6^{7}$$
3 step solution
Problem 12
Evaluate each expression if \(a=2\) and \(b=-3\) $$(a b)^{-2}$$
5 step solution
Problem 12
Factor each expression. $$t^{2}+4 t$$
3 step solution
Problem 12
Determine whether each number is prime or composite. $$33$$
5 step solution
Problem 12
Evaluate each expression if \(x=-2\) and \(y=4\) $$x^{2}+y^{2}$$
3 step solution
Problem 13
Write each fraction in simplest form. If the fraction is already in simplest form, write simplified. $$\frac{10}{12}$$
3 step solution
Problem 13
Express each number in standard form. $$1.5 \times 10^{-4}$$
4 step solution
Problem 13
Find each product or quotient. Express using exponents. $$9^{4} \cdot 9^{5}$$
4 step solution
Problem 13
Evaluate each expression if \(a=2\) and \(b=-3\) $$2^{b}$$
5 step solution
Problem 13
Factor each expression. $$15+20 x$$
2 step solution
Problem 13
Determine whether each number is prime or composite. $$23$$
6 step solution
Problem 13
SOUND Fireworks can easily reach a sound of 169 decibels, which can be dangerous if prolonged. Write this number using a power greater than 1 and a lesser base.
4 step solution
Problem 14
Write each fraction in simplest form. If the fraction is already in simplest form, write simplified. $$\frac{15}{21}$$
4 step solution
Problem 14
Express each number in standard form. $$9.01 \times 10^{-2}$$
3 step solution
Problem 14
Find each product or quotient. Express using exponents. $$10^{4} \cdot 10^{3}$$
3 step solution
Problem 14
Write each expression using a positive exponent. $$4^{-1}$$
3 step solution
Problem 14
Find the GCF of each set of numbers or monomials. $$12,8$$
3 step solution
Problem 14
Determine whether each number is prime or composite. $$70$$
3 step solution
Problem 14
Write each expression using exponents. $$4 \cdot 4 \cdot 4 \cdot 4 \cdot 4 \cdot 4$$
2 step solution
Problem 15
Write each fraction in simplest form. If the fraction is already in simplest form, write simplified. $$\frac{8}{36}$$
3 step solution
Problem 15
Express each number in standard form. $$1.399 \times 10^{5}$$
5 step solution
Problem 15
Find each product or quotient. Express using exponents. $$d^{4} \cdot d^{6}$$
4 step solution
Problem 15
Write each expression using a positive exponent. $$5^{-3}$$
3 step solution