February 23, 2015
Transcript of February 23, 2015
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Today:Introduction to Exponents & Scientific
Notation
Test Scores Posted
Khan Topics Posted
Class Work
February 23, 2015
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Vocabulary & Formulas Section of Notebook
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Exponents & Scientific Notation are the mathematician's shorthand.
In general, the format for using exponents is:
(base)exponent
where the exponent tells you how many of the
base are being multiplied together.
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Warm-Up (3):
1. A $320 television is discounted by 19%. What is the new price rounded to the nearest cent?
2. If 7x +4 = -18 + 5x, then 2x -14 equals...
3. Three watermelons and two coconuts weigh 32 pounds. Four watermelons and three cantaloupes weigh 44 pounds. All watermelons weigh the same and all cantaloupes weigh the same. What is the weight of two watermelons and one coconut?
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A Summary of Exponent Rules
1. 2.
5.
6. 7.
8.
3. Also Known as the power of a power rule.
4.
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Introduction to Monomials: Exponents
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Introduction to Monomials: Exponents
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Introduction to Monomials: Exponents
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Introduction to Monomials: Exponents
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Introduction to Monomials: Exponents
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Introduction to Monomials: Exponents
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Practice Problems
1. 72
2. (-8)2
3. (-9) 3
4. -24
5. -43
Introduction to Monomials: Exponents
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Exponent Laws
1. p2 • p4 • q3 • q5 = p6q8
Power of a Power
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Exponent Laws
Simplify to lowest terms:
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Scientific Notation
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Scientific Notation
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Scientific Notation
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Scientific Notation
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Scientific Notation
Write 32.500 in Scientific Notation
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Scientific Notation
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Scientific Notation
Write the following in Scientific Notation:
.00458
= 4.58 • 10 - 3
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Scientific Notation
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Class Work:
See #21 bottom left: f -7
See #22 bottom right: change to ( )
-2
f 4