Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 6 - 6.3 - Trigonometric Functions of Any Angle - 6.3 Exercises - Page 455: 108d

Answer

$26,756\text{ units}$.

Work Step by Step

(d) For June 2018, $t=6+12=18$. Substitute $t=18$ into the equation: $$S=23.1+0.442(18)+4.3\cos \left(\frac{\pi(18)}{6}\right)=26.756$$ The predicted sales is then: $$26.756(1000)=26,756\text{ units}$$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.

GradeSaver will pay $15 for your literature essays
GradeSaver will pay $25 for your college application essays
GradeSaver will pay $50 for your graduate school essays – Law, Business, or Medical
GradeSaver will pay $10 for your Community Note contributions