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EET 109 Math January 7, 2016 Week 1 Day 2
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Save your syllabus for future reference.
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Textbook
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January 12
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Home work format: Section number2.4 Problem number 14 Answer18.2 Show all your work.
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Save your homework and build a study guide. Get to know your classmates, work with them. Get a tutor. Answers to odd-numbered questions are in the book. NOT the solutions.
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Students who cannot meet with tutors during our normal operating hours are invited to explore our E-Tutoring service. explore our E-Tutoring service
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Chapter 1 Fundamental Concepts
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Not in textbook Remove the absolute bars. Remove the sign.
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Page 3
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This is so fundamental it will be on almost all tests.
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+2 -8 -3 -12 -9 -15
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Page 3
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+2 -8 -3 -12 -9 -15 Both !
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Parentheses are good tools. (+3) + (+6) + (-9) + (+6)
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Parentheses are good tools. (+3) + (+6) + (-9) + (+6) 3 + 6 + 6 = 15 -9 + -9 6
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Page 4
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Not in the textbook For your own use organize multiplication and division, positive and negative as it makes sense to you. Words or symbols.
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Compound Fraction
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Section 1.2 page 7 Order-Of-Operations
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“Please excuse my Dear aunt Sally”
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In class
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Section 1.3 Scientific notation is a method of writing very large and very small numbers while avoiding writing many zeros.
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Volt One coulomb of charge is the total charge associated with 6.242 x 10 18 electrons. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 6 242 000 000 000 000 000.
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Section 1.3 m integers are the counting numbers; that is, 1, 2, 3,
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Section 1.3
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CHANGING A NUMBER FROM DECIMAL FORM TO SCIENTIFIC NOTATION The 2 step method. m integers are the counting numbers; that is, 1, 2, 3,
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CHANGING A NUMBER FROM DECIMAL FORM TO SCIENTIFIC NOTATION 30 000 divided by 3 = 10 000.
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CHANGING A NUMBER FROM DECIMAL FORM TO SCIENTIFIC NOTATION 30 000 divided by 3 = 10 000. There are 4 zeros in 10 000. m integers are the counting numbers; that is, 1, 2, 3,
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CHANGING A NUMBER FROM SCIENTIFIC NOTATION TO DECIMAL FORM
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Section 1.3 page 12
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FIXED-POINT, FLOATING-POINT, SCIENTIFIC, AND ENGINEERING NOTATION Engineering notation specifies that all powers of ten must be 0 or multiples of 3, and the mantissa must be greater than or equal to 1 but less than 1000. mantissa In Mathematics the decimal part of a common logarithm.
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ENGINEERING NOTATION All powers of ten must be 0 or multiples of 3
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Volt 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 6 242 000 000 000 000 000. Scientific notation:6.242 x 10 18 electrons Engineering notation:6.242 a electrons (atto)
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In class work.
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Section 1.3 “Laws”
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Negative value so it can not be getting bigger.
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1.4 MEASUREMENT
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1/3 = 0. 3333
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Accuracy The accuracy of a measurement refers to the number of digits, called significant digits, which indicate the number of units we are reasonably sure of having counted when making a measurement. Precision The precision of a measurement refers to the smallest unit with which a measurement is made; that is, the position of the last significant digit.
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1.5 OPERATIONS WITH MEASUREMENTS
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End of Week 1 day 2
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