Variable stars are ones whose brightness varies periodically. One of the most visible variable stars is R Its brightness (a relative measure) is modeled by the formula below where t is measured in days. 8(t) = 7.9 -2.3cos(5 O 156 O 312 O 2π How often does the brightness cycle repeat itself (in days)? IT 156 O 365 6t). O 156
Variable stars are ones whose brightness varies periodically. One of the most visible variable stars is R Its brightness (a relative measure) is modeled by the formula below where t is measured in days. 8(t) = 7.9 -2.3cos(5 O 156 O 312 O 2π How often does the brightness cycle repeat itself (in days)? IT 156 O 365 6t). O 156
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Question
![Variable stars are ones whose brightness varies periodically. One of the most visible variable stars is R. Leonis.
Its brightness (a relative measure) is modeled by the formula below where t is measured in days.
B(t) = 7.9 -2.3cos(-
How often does the brightness cycle repeat itself (in days)?
O 156
0 0 0 0
O 312
O 2π
TU
156
TT
156
O 365
4](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd3f59171-6764-439c-9e53-e951734ad0cd%2Ffd7dd03d-8420-453f-b70a-98c4933eb4c0%2Fju4vzgg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Variable stars are ones whose brightness varies periodically. One of the most visible variable stars is R. Leonis.
Its brightness (a relative measure) is modeled by the formula below where t is measured in days.
B(t) = 7.9 -2.3cos(-
How often does the brightness cycle repeat itself (in days)?
O 156
0 0 0 0
O 312
O 2π
TU
156
TT
156
O 365
4
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