MAT 0028 - Applications of Linear Equations - Section 2.4
Mr. Levy
The following are the steps used in solving word problems.
1. Define the variables.
2. Write an equation.
3. Solve the equation.
4. Answer the question being asked.
Examples
1. If 7 times
MAT 0028 - Exponent Rules - Sections 5.1-5.3 Let m,n be rational numbers and a,b,am,an ,bm,bn be real numbers.
Mr. Levy
1.
a1 = a aman = am+n a m = a m-n an
(a 0)
2.
3.
4.
(am)n = amn (ab)n = anbn
5.
6.
a n = a n b bn
(b 0)
7.
a0 = 1 (a 0)
a-n = 1n a
(a
MAT 0028 - Polynomials - Section 5.5 Recall: A term is a number (constant), a variable, a product, or a quotient.
Mr. Levy
A polynomial in x is a term of the form axn or a sum of terms of the form axn , for any real number a and any whole number n. Exampl
MAT 0028 - Review of Chapter 1
Mr. Levy
Operations Involving Fractions
1. 1 3 + 6
20 25
2.
30 15
8
32
Order of Operations
The acronym PEMA is commonly used to help students remember the order of operations.
P = parentheses or any grouping symbols
E = exp