Abby notices that for the first twenty perfect squares, each square is either a multiple of 5, one less than a multiple of 5, or one more than a multiple of 5. She writes the following statement. If n is a natural number, then n2 can be written as 5k−1, 5k, or 5k+1, where k is a whole number. What type of statement did Abby make? Has she shown that her statement is true for all values of n? Explain.
Abby notices that for the first twenty perfect squares, each square is either a multiple of 5, one less than a multiple of 5, or one more than a multiple of 5. She writes the following statement. If n is a natural number, then n2 can be written as 5k−1, 5k, or 5k+1, where k is a whole number. What type of statement did Abby make? Has she shown that her statement is true for all values of n? Explain.
Intermediate Algebra
10th Edition
ISBN:9781285195728
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter4: Rational Expressions
Section4.3: Adding And Subtracting Rational Expressions
Problem 70PS
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Abby notices that for the first twenty perfect squares, each square is either a multiple of 5, one less than a multiple of 5, or one more than a multiple of 5. She writes the following statement.
If n is a natural number, then
n2
can be written as
5k−1,
5k, or
5k+1,
where k is a whole number.What type of statement did Abby make? Has she shown that her statement is true for all values of n? Explain.
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