Scientific Notation Innovation DP Integrated Algebra 1/11/2010
Do Now Jerry plans to buy a van that depreciates 16% per year. The initial cost of the van is $32, 500. What is the value of the van after… X (Years) 0 1 2 3 4 5 6 Y ($ Value)
Announcements Mock Regents Exam (1 of 3 ) – this Thursday, January 14 th Radicals (simplify, add/subtract, multiply/divide) Exponents (laws) Exponential Growth / Decay Scientific Notation Need help? Weren’t here for a topic? Lunch Before school After school Or none of the above
Scientific Notation Scientific notation Scientific: Of or pertaining to science Notation: A special/particular method of writing something Scientific notation is… A way to express very small or very large numbers Most often used in "scientific" calculations where the analysis must be very precise The Bottom Line: Scientific notation is another way of writing very small or big numbers using exponents
Scientific Notation (Cont’d) What is correct scientific notation? Number with one digit in front of the decimal All other numbers behind the decimal 10 being raised to a power of how many times you moved the decimal place Standard form 1 < n < 10 10 as base Scientific Notation Number of times you had to move decimal
Scientific Notation (Cont’d) Standard form 1 < n < 10 10 as base Scientific Notation Number of times you had to move decimal Negative exponent because original number was less than 1
Scientific Notation Problems Express 23, 201 in correct scientific notation Express 58, 600 in correct scientific notation Express 0. 000022 in correct scientific notation Express 0. 00988 in correct scientific notation
More Practice Just For You Express 908, 000 in correct scientific notation Express 67, 000 in correct scientific notation Express 0. 000001 in correct scientific notation Express 0. 0034 in correct scientific notation
More Practice Just For You Last year, Target sold 3 million t-shirts at an average value of $20 per t-shirt. What was the total value of shirts sold? Express your answer in scientific notation. Show all work. Express 5. 62 × 106 in standard form. Compare the following numbers – is A or B larger? A. 6 × (3 × 103) B. 9 × (8 × 102)
Assessment Read questions carefully TRIPLE check your answers Guess if you have to, but don’t leave questions blank! Make sure your name is on your paper Get this presentation online: http: //amanjee. diplomaplus. net
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