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8th Edition

Charles P. McKeague + 1 other

Publisher: Cengage Learning

ISBN: 9781305652224

Chapter 2.1, Problem 69PS

Textbook Problem

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Geometry: Characteristics of a Cube The object shown in Figure 10 is a cube (all edges are equal in length). Use this diagram for Problems 69 through 72.

Figure 10

Suppose each edge of the cube is 5 inches long. Find the sine and cosine of the angle formed by diagonals *CF* and *CH.*

To determine

**To find:**

The sine and cosine of the angle formed by diagonals CF and CH if each edge of the cube is 5 inches long.

**Given:**

The object shown in the given figure is a cube (all edges are equal in length);

**Concept Used:**

Pythagorean Theorem:

**Calculation:**

Let’s suppose A, B, C, D, E, F, G, H is a cube with each edge of 5 inches long;

Now to find the diagonal CH, we will use the Pythagorean Theorem as below:

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For the following set of scores, find the value of each expression: X 1 2 4 1 3 a. X2 b. (X)2 c. (X + 1) d. (X ...

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Integration by Tables In Exercises 4956, use integration tables to find or evaluate the integral. 01x1+ex2dx

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Evaluating a Definite Integral In Exercises 9-34, evaluate the definite integral. Use a graphing utility to ver...

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Evaluate the integral by interpreting it in terms of areas. 12(1x)dx

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The accompanying figure gives the demand curve and the supply curve associated with a certain commodity. a. Ide...

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The polar coordinates of the point P in the figure at the right are:

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In Exercises 5 to 10, find the value or expression for each of the six trigonometric ratios of angle . Use the...

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Consider the following population: {2, 3, 3, 4, 4}. The value of is 3.2, but suppose that this is not known to...

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True or False: f(x) = x2 is decreasing for 10 x 1.

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H0: = 120 and Ha: 120 are used to test whether a bath soap production process is meeting the standard output...

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Subtract the following terms as indicated. 8mn30

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For each of the following operational definitions, decide whether you consider it to be a valid measure. Explai...

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Graph: y3x.

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Finding the Area of a Region In Exercises 41-46, find the area of the region bounded by the graphs of the equat...

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Explain how the pretest helps minimize the threat to internal validity from individual differences in a pretest...

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Modeling DataA meteorologist measures the atmospheric pressure P (in kilograms per square meter) at altitude h ...

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Suppose the power series k0ck(x4)k is known to converge at 2 and diverge at 13. Discuss whether the series conv...

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14. Morningstar publishes ratings data on 1208 company stocks (Morningstar website, October 24, 2012). A sample...

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In Exercises 27-56, use a calculator to find each value. Give the entire display of your calculator. a. e3.9101...

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Reminder Round all answer to two decimal places unless otherwise indicated. 9.Describing an Area Find the area ...

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

a. Is log827=log23? Why or why not? b. Is log169=log43 ? Why or why not?

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34. Battery life between charges for the Motorola Droid Razr Maxx is 20 hours when the primary use is talk time...

Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)