subject
Mathematics, 23.06.2020 15:01 loki285

A Cepheid star is a type of variable star, which means its brightness is not constant. The relationship between the brightness of a Cepheid star and its period, or length of its pulse, is given by M = -2.78(log P) - 1.35, where M is the absolute magnitude, or
brightness of the star, and Pis the number of days required for the star to complete one cycle. What is the absolute magnitude of
a star that has a period of 45 days? Use a calculator. Round your answer to the nearest hundredth.
-5.95
-4.60
3.25
4.60

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 20.06.2019 18:04
Which of the following questions is a statistical question? (2 points) how many professional sport leagues are there? where do the professional sport leagues play? how many hours of professional training took place over the weekend? how many hours do you spend each week training for a sports league?
Answers: 1
question
Mathematics, 21.06.2019 13:30
Which best describes the transformation that occurs in the graph? a) dilation b) reflection c) rotation d) translation
Answers: 2
question
Mathematics, 21.06.2019 16:30
Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation
Answers: 3
question
Mathematics, 22.06.2019 00:50
How do newtons third law of motion demonstrates on a rollar coster
Answers: 2
You know the right answer?
A Cepheid star is a type of variable star, which means its brightness is not constant. The relations...
Questions
question
Mathematics, 16.12.2020 07:30
question
Business, 16.12.2020 07:30
question
Mathematics, 16.12.2020 07:30
question
Mathematics, 16.12.2020 07:30
question
Mathematics, 16.12.2020 07:30
Questions on the website: 13722363