Do Now 9/8/10 Take out HW from last night.

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Do Now 9/8/10 Take out HW from last night. Text page 7-8, #12-46 Copy HW in your homework log. Worksheet 1.1B In your notebook, answer the following. If 26 = L. of the A. means 26 letters of the alphabet, how many of the following “equations” can you translate? 24 = H in a D. 90 = D. in a R.A. 18 = H. on the G.C. 8 = P. in the S.S. 1000 = W. that a P. is W. Hours in a Day Degrees in a Right Angle Holes on the Golf Course Planets in the Solar System Words that a Picture is Worth

Objective use powers to describe repeated multiplication

Section 1.2 “Powers and Exponents” the result of repeated multiplication of the same factor 4 EXPONENT shows the number of times the base is multiplied 3 BASE the factor (number) that is being multiplied

3 POWER 4 the result of repeated multiplication of the same factor Repeated Multiplication (Factors) 3 EXPONENT Words three to the fourth power BASE

Write the product using an exponent. Then find the value. 1). 2 · 2 · 2 · 2 · 2 · 2 2). (0.2)(0.2)(0.2) SOLUTIONS

Evaluate the expression. 5 1. x2 when x = 8 2. k3 when k = 2.5 3. d when d = 6 SOLUTIONS 1. x2 = 82 2. k3 = 2.53 = 8 x 8 = (2.5)(2.5)(2.5) = 64 = 15.625 Use the button on your calculator for squares of numbers. 5 5 3. d = 6 = 6 x 6 x 6 x 6 x 6 Use the button on your calculator for all other powers. = 7776

Guided Practice Text p. 12, #1-11 all

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