Exercise 1.2 The Meaning of Indices In several exercises in this class you will be asked to calculate an index. An index is not a measurement of size. It tells us the ratio of two measurements. Such a ratio often provides us with a quantification of shape, such as the shape of the head. In this exercise you will take a series of measurements in the metric system on several geometric shapes and then calculate an index. 1. Using a metric ruler, measure the height and width of Box A in millimeters. 7 height width ? mm mm A 2 2. Calculate the height/width index of Box A using the following formula: (height/width) x 100 To eliminate the decimal point, multiply the proportion by 100. Thus an index of 1.13 becomes 113 and an index of 0.79 becomes 79. (In calculating indices, always round off the final number to the nearest whole number.) 3. Is this index a length?
Exercise 1.2 The Meaning of Indices In several exercises in this class you will be asked to calculate an index. An index is not a measurement of size. It tells us the ratio of two measurements. Such a ratio often provides us with a quantification of shape, such as the shape of the head. In this exercise you will take a series of measurements in the metric system on several geometric shapes and then calculate an index. 1. Using a metric ruler, measure the height and width of Box A in millimeters. 7 height width ? mm mm A 2 2. Calculate the height/width index of Box A using the following formula: (height/width) x 100 To eliminate the decimal point, multiply the proportion by 100. Thus an index of 1.13 becomes 113 and an index of 0.79 becomes 79. (In calculating indices, always round off the final number to the nearest whole number.) 3. Is this index a length?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter1: Expressions And Functions
Section: Chapter Questions
Problem 14PFA
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