Assessment Read each item carefully. Encircle the letter of the best answer. 1. Between what two integers is the ?54 located? A. 8 and 9 C. 6 and 7 B. 7 and 8 D. 5 and 6 2. Between what two integers does ?220 lie? A. 12 and 13 C. 14 and 15 B. 13 and 14 D. 15 and 16 3. Evaluate ?72. Between what two integers does it lie? A. 6 and 7 C. 8 and 9 B. 7 and 8 D. 9 and 10 4. Between what two integers does ?50 lie? A. 5 and 6 C. 7 and 8 B. 6 and 7 D. 8 and 9 5. Mrs. Luna wrote four irrational numbers on the board and asked Nathan to choose the number closest to 4. Which irrational number should Nathan choose? A. ?8 C. ?12 B. ?10 D. ?17
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The square root of 49 is 7 and the square root of 64 is 8. Therefore, the square root of 54 lies between 7 and 8. ** Show more…
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Lecture 1 Practice Questions 1. Determine whether the numbers are rational or irrational. a) √2 = b) 1.5 = c) √100 = d) 3.14 = 2. Without Actual Division, state which of the following is a terminating decimal. a) 9/25 = b) 37/78 = 3. Express each of the following as a rational number in the form of p/q, where q ≠ 0. a) = b) = 4. Convert each of the following into a decimal number. a) 4/15 = b) 25/12 = c) 9/27 = d) 53/155 = 5. Find the greatest common factor for each pair of numbers a) 12,18 = b) 54, 81 = c) 72, 48 = d) 6,9 = e) 10,15 =
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part B as 6 q1-2
Hoan N.
Determine whether the number is a natural number, an integer, a rational number, or an irrational number. (Some numbers fit in more than one category.) The following facts will be helpful in some cases: Any number of the form $\sqrt{n},$ where $n$ is a natural number that is not a perfect square, is irrational. Also, the sum, difference, product, and quotient of an irrational number and a nonzero rational are all irrational. (For example, the following four numbers are irrational: $\sqrt{6}$, $\sqrt{10}-2,3 \sqrt{15},$ and $-5 \sqrt{3} / 2,$ (a) 8.74 (b) 8.74
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