1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lyudmila [28]
3 years ago
9

A planet has a circular orbit around a star. It is a distance of 98,000,000 km from the centre of the star. It orbits at an aver

age speed of 45,000 km/h. How many Earth days does it take the planet to orbit the star? Give your answer to 2 sf.
Mathematics
1 answer:
avanturin [10]3 years ago
5 0

Answer:

91 days

Step-by-step explanation:

Given that,

A planet is at a distance of 98,000,000 km from the centre of the star.

It orbits at an average speed of 45,000 km/h.

The speed of an object is given by the distance covered divided by the time taken. So,

v=\dfrac{d}{t}\\\\t=\dfrac{d}{v}\\\\t=\dfrac{98,000,000}{45,000}\\\\t= $$2177.77\ h

or

t = 90.74 days ≅ 91 days

So, the planet take 91 days to orbit the star.

You might be interested in
What is the average rate of change of the function f(x)=2(3)x from x = 2 to x = 4?
Dvinal [7]
this is kinda easy and im gonna assume that the 4 is a exponent cuz f(2)=2(3)^4 then f=81
4 0
4 years ago
To the nearest whole degree, what angle measure has a sine of 0.3535? SOMEBODY HELP
Bas_tet [7]
The angle is sin inverse 0.3535 which is around 21 degrees
5 0
3 years ago
A used car is priced at $5250. If the price is dropped to $4500, what is the percent of change in the price of the car? Round yo
saw5 [17]
85.7% 
4500/5250=.857
move decimal 2 places to the right to convert a decimal to a percentage
8 0
3 years ago
Read 2 more answers
-0.2×-5/7<br><br>please can i have some help
Ksivusya [100]

Answer:

+1/7

Step-by-step explanation:

One approach to evaluating this would be to rewrite it as:

-2        -5  

------ * --------- .  

 10          7   This reduces to:

 2

--------- = +1/7

 2(7)

8 0
4 years ago
Which answers are examples of deductive reasoning?
Mariulka [41]

Answer:

The fair charges $5 for admission. Tom is going to the fair today. Therefore, Tom will spend $5 for admission to the fair today.

The radius of a circle is one-half the length of the diameter of a circle. The diameter of a circle is 10 ft. Therefore, the radius of the circle is 5 ft.

Step-by-step explanation:

Deductive reasoning or deduction, is one of the two basic types of logical inferences. A logical inference is a connection from a first statement to a second statement for which the rules of logic show that if the first statement is true, the second statement should be true. Basically one logical statement defines the base of the argument to reach the conclusion.

Here we can see that in first case:

The fair charges $5 for admission, so we know the fact that it charges $5 for the admission, now whoever goes to the fair will have to spend $5 to get in. Tom is going to the fair so Tom will spend$5 for admission to the fair. Therefore, this statement is deductive reasoning.

Case 2:

The radius of a circle is one-half the length of the diameter, this sentence is a fact. Now the diameter of a circle is 10ft so it is obvious that based on the previous sentence we will calculate the radius of the circle that is half of the diameter.

So only these two examples are based on deductive reasoning.

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the product of 4.23 and 1.2
    5·1 answer
  • I need help on this like now. The answer has to be a fraction.
    14·1 answer
  • Factor each expression 8 + 16
    9·1 answer
  • This 7 digit number is 8,920,000 when rounded to the nearest ten thousand
    14·1 answer
  • The base of a regular pyramid is a hexagon.
    10·2 answers
  • (75 points) ASAP Use a system of equations to solve this problem.
    12·1 answer
  • Brainliest
    12·2 answers
  • HELP PLEASE ASAP!!!!! Alex can cut a cord into 7 pieces in 36 seconds. How long will it take him to cut the cord into 12 pieces?
    6·1 answer
  • Find the mean, median, and mode(s) of the data. Do not round.<br><br> 12, 13, 40, 95, 88, 7, 95
    5·2 answers
  • What is x in .80x+30=1.20x+14
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!