BuyFind*arrow_forward*

7th Edition

Alexander + 2 others

Publisher: Cengage,

ISBN: 9781337614085

Chapter 11.4, Problem 28E

Textbook Problem

*In Exercises 23 to 28, use a form of the Law of Cosines to find the measure of the indicated side or angle. Angle measures should be found to the nearest degree and lengths of sides to the nearest tenth of a unit.*

Elementary Geometry For College Students, 7e

Show all chapter solutions

Ch. 11.1 - In Exercises 1 to 6, find sin and sin for the...Ch. 11.1 - In Exercises 1 to 6, find sin and sin for the...Ch. 11.1 - In Exercises 1 to 6, find sin and sin for the...Ch. 11.1 - In Exercises 1 to 6, find sin and sin for the...Ch. 11.1 - In Exercises 1 to 6, find sin and sin for the...Ch. 11.1 - In Exercises 1 to 6, find sin and sin for the...Ch. 11.1 - In Exercises 7 to 14, use either Table 11.2 or a...Ch. 11.1 - In Exercises 7 to 14, use either Table 11.2 or a...Ch. 11.1 - In Exercises 7 to 14, use either Table 11.2 or a...Ch. 11.1 - In Exercises 7 to 14, use either Table 11.2 or a...

Ch. 11.1 - In Exercises 7 to 14, use either Table 11.2 or a...Ch. 11.1 - In Exercises 7 to 14, use either Table 11.2 or a...Ch. 11.1 - In Exercises 7 to 14, use either Table 11.2 or a...Ch. 11.1 - In Exercises 7 to 14, use either Table 11.2 or a...Ch. 11.1 - In Exercises 15 to 20, find the lengths of the...Ch. 11.1 - In Exercises 15 to 20, find the lengths of the...Ch. 11.1 - In Exercises 15 to 20, find the lengths of the...Ch. 11.1 - In Exercises 15 to 20, find the lengths of the...Ch. 11.1 - In Exercises 15 to 20, find the lengths of the...Ch. 11.1 - In Exercises 15 to 20, find the lengths of the...Ch. 11.1 - In Exercises 21 to 26, find the measures of the...Ch. 11.1 - In Exercises 21 to 26, find the measures of the...Ch. 11.1 - In Exercises 21 to 26, find the measures of the...Ch. 11.1 - In Exercises 21 to 26, find the measures of the...Ch. 11.1 - In Exercises 21 to 26, find the measures of the...Ch. 11.1 - In Exercises 21 to 26, find the measures of the...Ch. 11.1 - In Exercises 27 to 34, use the drawings, where...Ch. 11.1 - In Exercises 27 to 34, use the drawings, where...Ch. 11.1 - In Exercises 27 to 34, use the drawings, where...Ch. 11.1 - In Exercises 27 to 34, use the drawings, where...Ch. 11.1 - In Exercises 27 to 34, use the drawings, where...Ch. 11.1 - In Exercises 27 to 34, use the drawings, where...Ch. 11.1 - In Exercises 27 to 34, use the drawings, where...Ch. 11.1 - In Exercises 27 to 34, use the drawings, where...Ch. 11.1 - For Exercises 35 to 38, make drawings as needed....Ch. 11.1 - For Exercises 35 to 38, make drawings as needed....Ch. 11.1 - For Exercises 35 to 38, make drawings as needed....Ch. 11.1 - For Exercises 35 to 38, make drawings as needed....Ch. 11.1 - For Exercises 35 to 38, make drawings as needed....Ch. 11.1 - For Exercises 35 to 38, make drawings as needed....Ch. 11.2 - In Exercises 1 to 6, find cos and cos.Ch. 11.2 - In Exercises 1 to 6, find cos and cos.Ch. 11.2 - In Exercises 1 to 6, find cos and cos.Ch. 11.2 - In Exercises 1 to 6, find cos and cos.Ch. 11.2 - In Exercises 1 to 6, find cos and cos.Ch. 11.2 - In Exercises 1 to 6, find cos and cos.Ch. 11.2 - For the triangles in Exercises 1 to 6, a why does...Ch. 11.2 - Using the right triangle from Exercise 1, show...Ch. 11.2 - In Exercise 9 to 16, use a calculator to find the...Ch. 11.2 - In Exercise 9 to 16, use a calculator to find the...Ch. 11.2 - In Exercise 9 to 16, use a calculator to find the...Ch. 11.2 - In Exercise 9 to 16, use a calculator to find the...Ch. 11.2 - In Exercise 9 to 16, use a calculator to find the...Ch. 11.2 - In Exercise 9 to 16, use a calculator to find the...Ch. 11.2 - In Exercise 9 to 16, use a calculator to find the...Ch. 11.2 - In Exercise 9 to 16, use a calculator to find the...Ch. 11.2 - In Exercise 17 to 22, use either the sine ratio or...Ch. 11.2 - In Exercise 17 to 22, use either the sine ratio or...Ch. 11.2 - In Exercise 17 to 22, use either the sine ratio or...Ch. 11.2 - In Exercise 17 to 22, use either the sine ratio or...Ch. 11.2 - In Exercise 17 to 22, use either the sine ratio or...Ch. 11.2 - In Exercise 17 to 22, use either the sine ratio or...Ch. 11.2 - In Exercise 23 to 28, use either the sine ratio or...Ch. 11.2 - In Exercise 23 to 28, use either the sine ratio or...Ch. 11.2 - In Exercise 23 to 28, use either the sine ratio or...Ch. 11.2 - In Exercise 23 to 28, use either the sine ratio or...Ch. 11.2 - In Exercise 23 to 28, use either the sine ratio or...Ch. 11.2 - In Exercise 23 to 28, use either the sine ratio or...Ch. 11.2 - In Exercise 29 to 37, angle measures should be...Ch. 11.2 - In Exercise 29 to 37, angle measures should be...Ch. 11.2 - In Exercise 29 to 37, angle measures should be...Ch. 11.2 - In Exercise 29 to 37, angle measures should be...Ch. 11.2 - In Exercise 29 to 37, angle measures should be...Ch. 11.2 - In Exercise 29 to 37, angle measures should be...Ch. 11.2 - In Exercise 29 to 37, angle measures should be...Ch. 11.2 - In Exercise 29 to 37, angle measures should be...Ch. 11.2 - In Exercise 29 to 37, angle measures should be...Ch. 11.2 - In the right circular cone, a Find r correct to...Ch. 11.2 - In parallelogram ABCD, find to the nearest degree:...Ch. 11.2 - A ladder of length AB is carried horizontally...Ch. 11.2 - Use the drawing provided to show that the area of...Ch. 11.2 - For Exercise 42 and 43, use the drawing and the...Ch. 11.2 - For Exercise 42 and 43, use the drawing and the...Ch. 11.2 - In regular pentagon ABCDE, each radius has length...Ch. 11.2 - Consider regular pentagon ABCDE of Exercise 44. In...Ch. 11.3 - In Exercises 1 to 4, find tan and tan for each...Ch. 11.3 - In Exercises 1 to 4, find tan and tan for each...Ch. 11.3 - In Exercises 1 to 4, find tan and tan for each...Ch. 11.3 - In Exercises 1 to 4, find tan and tan for each...Ch. 11.3 - In Exercises 5 to 10, find the value or expression...Ch. 11.3 - In Exercises 5 to 10, find the value or expression...Ch. 11.3 - In Exercises 5 to 10, find the value or expression...Ch. 11.3 - In Exercises 5 to 10, find the value or expression...Ch. 11.3 - In Exercises 5 to 10, find the value or expression...Ch. 11.3 - In Exercises 5 to 10, find the value or expression...Ch. 11.3 - In Exercises 11 to 14, use a calculator to find...Ch. 11.3 - In Exercises 11 to 14, use a calculator to find...Ch. 11.3 - In Exercises 11 to 14, use a calculator to find...Ch. 11.3 - In Exercises 11 to 14, use a calculator to find...Ch. 11.3 - In Exercises 15 to 20, use the sine, cosine, or...Ch. 11.3 - In Exercises 15 to 20, use the sine, cosine, or...Ch. 11.3 - In Exercises 15 to 20, use the sine, cosine, or...Ch. 11.3 - In Exercises 15 to 20, use the sine, cosine, or...Ch. 11.3 - In Exercises 15 to 20, use the sine, cosine, or...Ch. 11.3 - In Exercises 15 to 20, use the sine, cosine, or...Ch. 11.3 - In Exercises 21 to 26, use the sine, cosine, or...Ch. 11.3 - In Exercises 21 to 26, use the sine, cosine, or...Ch. 11.3 - In Exercises 21 to 26, use the sine, cosine, or...Ch. 11.3 - In Exercises 21 to 26, use the sine, cosine, or...Ch. 11.3 - In Exercises 21 to 26, use the sine, cosine, or...Ch. 11.3 - In Exercises 21 to 26, use the sine, cosine, or...Ch. 11.3 - In Exercises 27 to 32, use a calculator and...Ch. 11.3 - In Exercises 27 to 32, use a calculator and...Ch. 11.3 - In Exercises 27 to 32, use a calculator and...Ch. 11.3 - In Exercises 27 to 32, use a calculator and...Ch. 11.3 - In Exercises 27 to 32, use a calculator and...Ch. 11.3 - In Exercises 27 to 32, use a calculator and...Ch. 11.3 - In Exercises 33 to 38, we expand the list of...Ch. 11.3 - In Exercises 33 to 38, we expand the list of...Ch. 11.3 - In Exercises 33 to 38, we expand the list of...Ch. 11.3 - In Exercises 33 to 38, we expand the list of...Ch. 11.3 - In Exercises 33 to 38, we expand the list of...Ch. 11.3 - In Exercises 33 to 38, we expand the list of...Ch. 11.3 - In Exercises 39 to 45, angle measures should be...Ch. 11.3 - In Exercises 39 to 45, angle measures should be...Ch. 11.3 - In Exercises 39 to 45, angle measures should be...Ch. 11.3 - In Exercises 39 to 45, angle measures should be...Ch. 11.3 - In Exercises 39 to 45, angle measures should be...Ch. 11.3 - In Exercises 39 to 45, angle measures should be...Ch. 11.3 - In Exercises 39 to 45, angle measures should be...Ch. 11.3 - In the triangle shown, find each measure to the...Ch. 11.3 - At an altitude of 12,000 ft, a pilot sees two...Ch. 11.3 - Consider the regular square pyramid shown. a Find...Ch. 11.3 - Consider the regular square pyramid shown. a Find...Ch. 11.4 - In Exercises 1 and 2, use the given information to...Ch. 11.4 - In Exercises 1 and 2, use the given information to...Ch. 11.4 - In Exercises 3 and 4, state the form of the Law of...Ch. 11.4 - In Exercises 3 and 4, state the form of the Law of...Ch. 11.4 - In Exercises 5 and 6, state the form of the Law of...Ch. 11.4 - In Exercises 5 and 6, state the form of the Law of...Ch. 11.4 - In Exercises 7 and 8, state the form of the Law of...Ch. 11.4 - In Exercises 7 and 8, state the form of the Law of...Ch. 11.4 - For ABC not shown, suppose you know that...Ch. 11.4 - For ABC not shown, suppose you know that...Ch. 11.4 - In Exercises 11 to 14, find the area of each...Ch. 11.4 - In Exercises 11 to 14, find the area of each...Ch. 11.4 - In Exercises 11 to 14, find the area of each...Ch. 11.4 - In Exercises 11 to 14, find the area of each...Ch. 11.4 - In Exercises 15 and 16, find the area of the given...Ch. 11.4 - In Exercises 15 and 16, find the area of the given...Ch. 11.4 - In Exercises 17 to 22, use a form of the Law of...Ch. 11.4 - In Exercises 17 to 22, use a form of the Law of...Ch. 11.4 - In Exercises 17 to 22, use a form of the Law of...Ch. 11.4 - In Exercises 17 to 22, use a form of the Law of...Ch. 11.4 - In Exercises 17 to 22, use a form of the Law of...Ch. 11.4 - In Exercises 17 to 22, use a form of the Law of...Ch. 11.4 - In Exercises 23 to 28, use a form of the Law of...Ch. 11.4 - In Exercises 23 to 28, use a form of the Law of...Ch. 11.4 - In Exercises 23 to 28, use a form of the Law of...Ch. 11.4 - In Exercises 23 to 28, use a form of the Law of...Ch. 11.4 - In Exercises 23 to 28, use a form of the Law of...Ch. 11.4 - In Exercises 23 to 28, use a form of the Law of...Ch. 11.4 - In Exercises 29 to 34, use the Law of Sines or the...Ch. 11.4 - In Exercises 29 to 34, use the Law of Sines or the...Ch. 11.4 - In Exercises 29 to 34, use the Law of Sines or the...Ch. 11.4 - In Exercises 29 to 34, use the Law of Sines or the...Ch. 11.4 - In Exercises 29 to 34, use the Law of Sines or the...Ch. 11.4 - In Exercises 29 to 34, use the Law of Sines or the...Ch. 11.4 - For the triangle shown, the area is exactly...Ch. 11.4 - For the triangle shown, use the Law of Cosines to...Ch. 11.4 - In the support structure for the Ferris wheel,...Ch. 11.4 - On a baseball diamond a square, the bases are 90ft...Ch. 11.4 - On the baseball diamond, the pitchers mound is...Ch. 11.4 - Show that the form of the Law of Cosines written...Ch. 11.4 - Explain why the area of the parallelogram shown is...Ch. 11.4 - Find the area of MNPQifa=8cm,b=12cm,and=70. Answer...Ch. 11.4 - Find the area of MNPQifa=6.3cm,b=8.9cm,and=67.5....Ch. 11.4 - The sides of a rhombus have length a. Two adjacent...Ch. 11.4 - Two sides of a triangle have measures a inches and...Ch. 11.4 - Use Theorem 11.4.1 to show that the area of an...Ch. 11.CR - In Review Exercises 1 to 4, state the ratio...Ch. 11.CR - In Review Exercises 1 to 4, state the ratio...Ch. 11.CR - In Review Exercises 1 to 4, state the ratio...Ch. 11.CR - In Review Exercises 1 to 4, state the ratio...Ch. 11.CR - In Review Exercises 5 to 8, state the ratio...Ch. 11.CR - In Review Exercises 5 to 8, state the ratio...Ch. 11.CR - In Review Exercises 5 to 8, state the ratio...Ch. 11.CR - In Review Exercises 5 to 8, state the ratio...Ch. 11.CR - In Review Exercises 9 to 12, use the Law of Sines...Ch. 11.CR - In Review Exercises 9 to 12, use the Law of Sines...Ch. 11.CR - In Review Exercises 9 to 12, use the Law of Sines...Ch. 11.CR - In Review Exercises 9 to 12, use the Law of Sines...Ch. 11.CR - In Review Exercises 13 to 17, use the Law of Sines...Ch. 11.CR - In Review Exercises 13 to 17, use the Law of Sines...Ch. 11.CR - In Review Exercises 13 to 17, use the Law of Sines...Ch. 11.CR - In Review Exercises 13 to 17, use the Law of Sines...Ch. 11.CR - In Review Exercises 13 to 17, use the Law of Sines...Ch. 11.CR - In Review Exercise 18 to 20, prove each statement...Ch. 11.CR - In Review Exercise 18 to 20, prove each statement...Ch. 11.CR - In Review Exercise 18 to 20, prove each statement...Ch. 11.CR - In Review exercises 21 to 30. Use the drawings....Ch. 11.CR - In Review exercises 21 to 30. Use the drawings....Ch. 11.CR - In Review exercises 21 to 30. Use the drawings....Ch. 11.CR - In Review Exercises 21 to 30, use the drawings,...Ch. 11.CR - In Review Exercises 21 to 30, use the drawings,...Ch. 11.CR - In Review Exercises 21 to 30, use the drawings,...Ch. 11.CR - In Review Exercises 21 to 30, use the drawings,...Ch. 11.CR - In Review Exercises 21 to 30, use the drawings,...Ch. 11.CR - In Review Exercises 21 to 30, use the drawings,...Ch. 11.CR - In Review Exercises 21 to 30, use the drawings,...Ch. 11.CR - If sin=725, find cos and sec.Ch. 11.CR - If tan=1160, find sec and cot.Ch. 11.CR - If cot=2120, find csc and sinCh. 11.CR - In a right circular cone, the radius of the base...Ch. 11.CT - For the right triangle shown, express each of the...Ch. 11.CT - For the right triangle shown, express each ratio...Ch. 11.CT - Without using a calculator, find the exact value...Ch. 11.CT - Use your calculator to find each number correct to...Ch. 11.CT - Using your calculator, find to the nearest degree...Ch. 11.CT - Without the calculator, determine which number is...Ch. 11.CT - In the drawing provided, find the value of a to...Ch. 11.CT - In the drawing provided, find the value of y to...Ch. 11.CT - In the drawing provided, find the measure of to...Ch. 11.CT - Using the drawing below, classify each statement...Ch. 11.CT - A kite is flying at an angle of elevation of 670...Ch. 11.CT - A roofline shows a span of 12 ft across a sloped...Ch. 11.CT - If sin =12, find: a csc bCh. 11.CT - In a right triangle with acute of measures and ,...Ch. 11.CT - Use one of the three forms for area such as the...Ch. 11.CT - On the basis of the drawing provided, complete the...Ch. 11.CT - On the basis of the drawing provided, complete...Ch. 11.CT - Use the Law of Sines or the Law of Cosines to find...Ch. 11.CT - Use the Law of Sines or the Law of Cosines to find...Ch. 11.CT - Each apothem of regular pentagon ABCDE has length...

Find more solutions based on key concepts

Show solutions For the function f whose graph is given, state the value of each quantity, if it exists. If it does not exist, ...

Single Variable Calculus

List the first five terms of the sequence. 11. a1 = 2, an+1=an1+an

Calculus: Early Transcendentals

Evaluating Trigonometric Functions Find sin t and cos t for the values of t whose terminal points are shown on ...

Precalculus: Mathematics for Calculus (Standalone Book)

Simplify each expression in Exercises 1730, expressing your answer in positive exponent form. y5y3

Finite Mathematics and Applied Calculus (MindTap Course List)

In Exercises 2528. solve the equation by factoring. 28. 2x4 + x2 = 1

Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach

The linear density of a rod of length 1 m is given by (x)=1/x, in grams per centimeter, where x is measured in ...

Single Variable Calculus: Early Transcendentals, Volume I

You have been observing the local Democratic Party in a large city and have compiled some information about a s...

Essentials Of Statistics

Use Equation 6 to find dy/dx. ycosx=x2+y2

Calculus (MindTap Course List)

Express the number as a ratio of integers. 54. 10.135=10.135353535

Multivariable Calculus

Using the Point-Slope Form In Exercises 5360, find an equation of the line that passes through the given point ...

Calculus: An Applied Approach (MindTap Course List)

Statistical Literacy Which, if any, of the curves in Figure 7-7 look(s) like a normal curve? If a curve is not ...

Understanding Basic Statistics

a. Use the rules of expected value to show that Cov(aX + b, cY + d) = ac Cov(X, Y). b. Use part (a) along with ...

Probability and Statistics for Engineering and the Sciences

Projectile Motion In Exercises 27-40, use the model for projectile motion, assuming there is no air resistance ...

Calculus: Early Transcendental Functions

In Exercises I to 10, let U = English, French, History, Math, Physics, Chemistry, Psychology, Drama), A = {Engl...

Mathematical Excursions (MindTap Course List)

An end view and side view of a shaft are shown in Illustration 15 a. Find the diameter of the largest part of t...

Elementary Technical Mathematics

Guguen and Jacob (2012) asked waitresses to wear different colored T-shirts on different days for a six-week pe...

Essentials of Statistics for The Behavioral Sciences (MindTap Course List)

Calculate each expression in Exercises 124, giving the answer as a whole number or a fraction in lowest terms. ...

Finite Mathematics

Income by age The median income for workers age to is shown in the following table.
Use the scatter plot of th...

Mathematical Applications for the Management, Life, and Social Sciences

For Problems 51-78, simplify each of the numerical expressions. Objective 3 [7+2355]8

Intermediate Algebra

A distribution with a mean of =38and a standard deviation of =5is transformed into a standardized distribution ...

Statistics for The Behavioral Sciences (MindTap Course List)

Solve each equation in Exercises 107120 for x, rounding your answer to four significant digits where necessary....

Applied Calculus

Prove that the number of ordered pairs a,b that form a key for an affine cipher f(x)=ax+b mod n is (n)n.

Elements Of Modern Algebra

Calculate the gross and net profits and the two profit margins for the following companies.
Cost of Gross Oper...

Contemporary Mathematics for Business & Consumers

Prove that each of the following identities is true. costan=sin

Trigonometry (MindTap Course List)

Evaluating a Definite Integral In Exercises 27-30, evaluate the definite integral. 1elnxxdx

Calculus of a Single Variable

Refer to the figure and find the volume generated by rotating the given region about the specified line. R2 abo...

Single Variable Calculus: Early Transcendentals

If 2x + 2 ≤ f(x) ≤ x2 + 3 for all x, then =_____.
1
4
does not exist
exists but cannot be determined from the ...

Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th

In Exercises 14, write the converse, the contrapositive, and the inverse of the conditional statement. pq

Finite Mathematics for the Managerial, Life, and Social Sciences

Decomposition of a Composite Function In Exercises 5-12, complete the table. y=f(g(x)) u=g(x) y=f(u) y=csc3x

Calculus: Early Transcendental Functions (MindTap Course List)

For and

Study Guide for Stewart's Multivariable Calculus, 8th

The quarterly sales data (number of copies sold) for a college textbook over the past three years follow. a. Co...

STATISTICS F/BUSINESS+ECONOMICS-TEXT

List the five sections typically found in a research article, and describe briefly what each should contain.

Research Methods for the Behavioral Sciences (MindTap Course List)

Describe how the reliability of a personality test could be established using the results from a correlational ...

Research Methods for the Behavioral Sciences (MindTap Course List)

Solve each equation by factoring. 12x2+9=24x

College Algebra (MindTap Course List)

Multiply the following terms as indicated. (d4m2)(1)(m3)

Mathematics For Machine Technology

Finding a Maclaurin Polynomial In Exercises 77 and 78, find the n th Maclaurin polynomial for the function. f(x...

Calculus (MindTap Course List)

Finding the Center of MassIn Exercises 3740, find the mass and center of mass of the lamina bounded by the grap...

Multivariable Calculus

The paper Accuracy and Reliability of Self-Reported Weight and Height in the Sister Study {Public Health Nutrit...

Introduction To Statistics And Data Analysis

Comcast Corporation is the largest cable television company, the second largest Internet service provider, and ...

Statistics for Business & Economics, Revised (MindTap Course List)

Testing Time to Breakdown Between All Pairs of Machines. Refer to exercise 18. Use the Bonferroni adjustment to...

Essentials Of Statistics For Business & Economics

In Exercises 5-10, find the indicated product if it exists. [3605][635025]

Mathematics: A Practical Odyssey

In Problems 2734 find linearly independent functions that annihilated by the given differential operator. 34. D...

A First Course in Differential Equations with Modeling Applications (MindTap Course List)

Use any method to prove the statements in 26-29. For all positive real numbers r and s, r+sr+s.

Discrete Mathematics With Applications

Refer to the data in exercise 28.
Develop an estimated regression equation that can be used to predict Delay by...

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

Finding Maxima and Minima In Exercises S-5 through S-23, find all maxima and minima as instructed. You should f...

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

Writing an Augmented Matrix: In Exercises 15-20, write the augmented matrix for the system of linear equations....

College Algebra