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A Cepheid star is a type of variable star, which means that its brightness is not constant. The relationship between the brightness of a Cepheid

A Cepheid star is a type of variable star, which means that 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 (logP) 1.35,

whereMis the absolute magnitude, or brightness, of the star, andPis the number of days required for the star to complete one cycle.

Use a calculator to solve each problem. Round your answers to the nearest hundredth.

What is the absolute magnitude of a star that has a period of 62 days?

What is the absolute magnitude of a star that has a period of 50 days?

how do you solve them?

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