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Past Exam for MATH A205 - Communicating Mathematical Ideas at University of Alaska - Anchorage (UAA)

Exam Information

Material Type:Exam 2
Professor:Staff
Class:MATH A205 - Communicating Mathematical Ideas
Subject:Mathematics
University:University of Alaska - Anchorage
Term:--
Keywords:
  • Such Factors
  • Subtractive
  • Interpretation
  • Total Length
  • Justification
  • Square Inches
  • Problem Solving
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Math 205 Test 2 Key Instructions 1. Do NOT write your answers on these sheets. Nothing written on the test papers will be graded. 2. Please begin each section of questions on a new sheet of paper. 3. Please do not write answers side by side. 4. Please do not staple your test papers together. 5. Limited credit will be given for incomplete or incorrect justification. Questions 1. Arithmetic with repeating decimals (a) Example 1 i. (3) Convert 1 9 , 1 11 , 20 99 to decimal. 0.1111 9 1.0000 9 10 9 10 9 10 9 1 0.0909 11 1.0000 99 100 99 1 0. 2 0 2 99 20.000 198 200 198 2 ii. (2) Add 1 9 + 1 11 as fractions. 1 9 + 1 11 = we change to a common denominator 1 9 11 11 + 1 11 9 9 = 11 99 + 9 99 = with the common denominator we add 20 99 . iii. (3) Add 1 9 + 1 11 as decimals. Use the same addition algorithm used for non-repeating decimals. 0.1111 0.0909 0.2020 iv. (1) Do your two answers match? Yes. Based on the calculations above...
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