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Rama09 [41]
2 years ago
7

A planet orbiting a distant star has been observed to have an orbital period of 0.76 earth years at a distance of 1.2 au. what i

s the mass of the star the planet is orbiting? round your answer to the nearest whole number. solar masses
Mathematics
1 answer:
Sindrei [870]2 years ago
5 0

Based on the orbital period of the planet in earth years, and the distance it is rotating, the mass of the star that the planet is orbiting is 3 solar masses.

<h3>What is a solar mass?</h3>

Because the sun is so heavy, it needed to have a special unit that could adequately reflect this mass.

Solar masses was the term that scientists came up with. In terms of the Earth's mass, a single solar mass means that the body is 333,000 times the mass of the Earth.

When given the orbital period of a planet, and the distance it is orbiting around a sun, you can find the solar mass by the formula:

= Distance planet is rotating³ - Orbital period²

Solving gives:

= 1.2³ / 0.76²

= 2.99

= 3 solar masses

In conclusion the mass of the star is 3 solar masses

Find out more on solar masses at brainly.com/question/15693127

#SPJ1

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A brand new car costs $18,000, this price depreciates at 25% every year, how much would the car be after 12 years? 20 years?
Snezhnost [94]

Answer:

<em>C(12)=$570.18</em>

<em>C(20)=$57.08</em>

Step-by-step explanation:

<u>Exponential Decay Function</u>

The exponential function is often used to model natural growing or decaying processes, where the change is proportional to the actual quantity.

An exponential decaying function is expressed as:

C(t)=C_o\cdot(1-r)^t

Where:

C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

r is the decaying rate, expressed in decimal

The depreciation of goods is often modeled as an exponential function. The new car costs $18,000 and its price depreciates at r=25%= 0.25 every year.

The depreciation model is:

C(t)=18,000\cdot(1-0.25)^t

Operating:

C(t)=18,000\cdot 0.75^t

At t=12 years, the price will be:

C(12)=18,000\cdot 0.75^{12}

C(12)=$570.18

At t=20 years, the price will be:

C(20)=18,000\cdot 0.75^{20}

C(20)=$57.08

8 0
3 years ago
I need some help!?!?!?!?!?
Vikki [24]

Answer:

y=12.5h+3.8    h = 0.08 y − 0.304

Step-by-step explanation:

I think that is the answer

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3 years ago
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Answer:

21.8

Step-by-step explanation:

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3 years ago
can somebody please help me with this, also show work so that way i can copy because this is due tmr and i have no clue how to d
kumpel [21]
27/135 = x/100
27 *100=135*x
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HELP!!!
ki77a [65]
Length of the outer frame: 4+2x
width of the outer frame: 3+2x
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4 0
3 years ago
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