Lesson 4-7 Pages 181-185 Negative Exponents Lesson Check 4-6.
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Transcript of Lesson 4-7 Pages 181-185 Negative Exponents Lesson Check 4-6.
![Page 1: Lesson 4-7 Pages 181-185 Negative Exponents Lesson Check 4-6.](https://reader033.fdocuments.us/reader033/viewer/2022050800/5a4d1b267f8b9ab0599974dc/html5/thumbnails/1.jpg)
Lesson 4-7 Pages 181-185
Negative Exponents
Lesson Check 4-6
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What you will learn!1. How to write expressions
using negative exponents.
2. How to evaluate numerical expressions containing negative exponents.
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What you really need to know!
4422 16164411 444400 1144-1-1
44-2-241
The pattern shows that a negative exponent means to write the base as the denominator of a fraction with a numerator of 1.
161
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What you really need to know!
We can evaluate algebraic expressions with negative exponents using the definition of negative exponents.
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Example 1:
Write each expression using a positive exponent:
33-4-4 == 113344
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Example 2:
Write each expression using a positive exponent:
mm-2-2 == 11mm22
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Example 3:
Write each expression using a negative exponent:
11 == 11 == 55-3-3
125125 5533
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Example 4:
An atom is an incredibly small unit of matter. The smallest atom has a diameter of approximately 1/10th of a nanometer, or 0.0000000001 meter. Write this decimal as a fraction and as a power of 10.
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0.000000000111
10,000,000,00010,000,000,00011
== 1010-10-10
10101010
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Example 5:
Evaluate r-2 if r = -4
11==
11==
11rr22 (-4)(-4)22 1616
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Page 183
Guided Practice
#’s 3-13
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Pages 181-182 with someone at home and study
examples!
Read:
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Homework: Pages 183-185
#’s 14-52 even
#’s 55-56, 61-74,
Practice Quiz 2: 1-10Lesson Check 4-7
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Page
732
Lesson 4-7
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Lesson Check 4-7