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Grade 8 McGraw Hill Glencoe - Answer Keys
Chapter 1 - Real Numbers; Lesson 2: Powers and Exponents
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Extra Practice
Question 17
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Write \(3\cdot\text{p}\cdot\text{p}\cdot\text{p}\cdot3\cdot3\) using exponents.
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Question 18
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Evaluate \(\text{x}^{3} + \text{y}^{4}\) if x = -3 and y = 4.
Write each expression using exponents.
Question 19
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\((-\cfrac{5}{6})(-\cfrac{5}{6})(-\cfrac{5}{6})\)
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Question 20
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\(\text{s}\cdot(7)\cdot\text{s}\cdot(7)\cdot(7)\)
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Question 21
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\(4\cdot\text{b}\cdot\text{b}\cdot4\cdot\text{b}\cdot\text{b}\)
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Evaluate each expression.
Question 23
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\((\text{c}^{3} + \text{d}^{4})^{2} - (\text{c} + \text{d})^{3}\), if c = -1 and d = 2
Fill in with <,>, or = to make a true statement.
Question 27
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Multiple Representations A square has a side length of s inches.
a . Tables Copy and complete the table showing the side length, perimeter, and area of the square on a separate piece of paper.
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Question 27
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b . Graphs On a separate piece of grid paper, graph the ordered pairs (side length, perimeter) and (side length, area) on the same coordinate plane. Then connect the points for each set.
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Question 27
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c . Words On a separate sheet of paper, compare and contrast the graphs of the perimeter and area of the square. Which graph is a line?
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