WebAssign is not supported for this browser version. Some features or content might not work. System requirements

WebAssign

Welcome, demo@demo

(sign out)

Saturday, March 29, 2025 02:36 EDT

Home My Assignments Grades Communication Calendar My eBooks

My Cengage Home Notifications Help My Account

Math - College, section 1, Fall 2019
My Assignments

Larson - Trigonometry 10/e (Homework)

James Finch

Math - College, section 1, Fall 2019

Instructor: Dr. Friendly

Current Score : 10 / 12

Due : Sunday, January 27, 2030 00:00 EST

Last Saved : n/a Saving... ()

Ask Your Teacher Print Assignment

Question

Points

1	2	3	4	5	6	7
0/1	1/1	4/4	3/3	1/1	1/1	–/1

Total

10/12 (83.3%)

Instructions

Trigonometry, 10th edition, written by Ron Larson and published by Cengage Learning, is known for delivering sound, consistently structured explanations and carefully written exercises. In this edition, the author continues to revolutionize the way students learn by incorporating more real-world applications and innovative technology. The WebAssign component for this title engages students with many features, and links to a complete eBook.

Question 1 grades all solutions written as a list. The prompt alerts the student to enter a comma-separated list of answers.

Question 2 contains expression grading where any equivalent form of the expression is accepted. Also included are a Master It tutorial, Watch It, and solution.

Question 3 is a multi-part question which shows one of many prompts used to indicate to the student what to enter when there is no answer.

Question 4 requires the evaluations of the the sine, cosine, and tangent of the angle to be entered in simplest form.

Question 5 features an image with a randomized value, which allows students to experience different versions of this real-world application.

Question 6 enforces that the answer is written as a complex number and includes a Watch It.

Question 7 highlights grading used for an expanded logarithm per the question instructions. This demo assignment allows many submissions and allows you to try another version of the same question for practice wherever the problem has randomized values.

The answer key and solutions will display after the first submission for demonstration purposes. Instructors can configure these to display after the due date or after a specified number of submissions.

Assignment Submission

For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer.

Assignment Scoring

Your last submission is used for your score.

1. 0/1 points | Previous Answers LarTrig10 0.6.024. My Notes

Find the zeros of the function algebraically. (Enter your answers as a comma-separated list.)

f(x) = 9x³ − 81x² − x + 9

x =

0,9,−9

$webMathematica generated answer key$

Viewing Saved Work Revert to Last Response

2. 1/1 points | Previous Answers LarTrig10 0.8.044.MI. My Notes

Write an equation for the function described by the given characteristics.

The shape of

f(x) = |x|,

but shifted three units to the left and seven units down

g(x) =

|x+3|−7

Solution or Explanation

f(x) = |x| moved 3 units to the left and 7 units down

g(x) = |x + 3| − 7

Need Help?

Viewing Saved Work Revert to Last Response

3. 4/4 points | Previous Answers LarTrig10 1.1.032. My Notes

Find (if possible) the complement and supplement of each angle. (If not possible, enter IMPOSSIBLE.)

(a) 55°

complement	35 °
supplement	125 °

(b) 102°

complement	IMPOSSIBLE °
supplement	78 °

Solution or Explanation

(a)	Complement:	90° − 55°	=	35°
	Supplement:	180° − 55°	=	125°

(b)

Complement: Not possible,

102° is greater than 90°

Supplement:

180° − 102°

78°

Viewing Saved Work Revert to Last Response

4. 3/3 points | Previous Answers LarTrig10 1.4.061. My Notes

Evaluate the sine, cosine, and tangent of the angle without using a calculator. (If an answer is undefined, enter UNDEFINED.)

4π

sin θ	=	−√32 $webMathematica generated answer key$
cos θ	=	−12 $webMathematica generated answer key$
tan θ	=	√3 $webMathematica generated answer key$

Viewing Saved Work Revert to Last Response

5. 1/1 points | Previous Answers LarTrig10 1.8.050. My Notes

A buoy oscillates in simple harmonic motion as waves go past. At a given time it is noted that the buoy moves a total of y = 8.5 feet from its low point to its high point (see figure), and that it returns to its high point every 10 seconds. Write an equation that describes the motion of the buoy if its high point is at t = 0.
d =

4.25cos(π2t10)

Solution or Explanation

At t = 0, buoy is at its high point right double arrow implies

d = a cos(ωt).

Distance from high to low = 2|a|

8.5

|a|

Returns to high point every 10 seconds:

Period:

2π

= 10

ω =

d =

cos

πt

Viewing Saved Work Revert to Last Response

6. 1/1 points | Previous Answers LarTrig10 4.1.012. My Notes

Write the complex number in standard form.

6 +

−64

6+8i

$webMathematica generated answer key$

Viewing Saved Work Revert to Last Response

7. –/1 points LarTrig10 5.3.049. My Notes

Use the properties of logarithms to expand the expression as a sum, difference, and/or constant multiple of logarithms. (Assume all variables are positive.)

ln xyz²

Viewing Saved Work Revert to Last Response

Home My Assignments

1	2	3	4
1/1	1/1	1/1	1/1
1/100	1/100	1/100	1/100

1	2	3
1/1	1/1	1/1
1/100	1/100	1/100