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
balu736 [363]
3 years ago
7

The distance from Earth to the sun, about 1.50 x 10^8 kilometers, is known as an astronomical unit. The nearest star, Proxima Ce

ntauri, is 2.6 x 10^8 astronomical units from Earth. How many kilometers separate Earth from the nearest star? Write you answer in Scientific Notation
Mathematics
1 answer:
Anvisha [2.4K]3 years ago
7 0

Answer:

Distance from Earth to Proxima Centauri (in scientific notation) = 3.9*10^{16} kilometers

Step-by-step explanation:

We need the conversion between Astronomical Unit and Kilometers.

The conversion is:

1 AU = 1.496*10^8 km

or rounded, given in this problem,

1 AU = 1.5*10^8 km

We need the distance from Earth to Proxima Centauri:

2.6*10^8 AU * 1.5*10^8 kilometers

When multiplying two numbers in scientific notation, we have to "multiply the coefficients" and "add the exponents".

Lets do this:

(2.6*10^8)*(1.5*10^8)\\=(2.6*1.5)*10^{8+8}\\=3.9*10^{16}

Distance from Earth to Proxima Centauri (in scientific notation) = 3.9*10^{16} kilometers

You might be interested in
Brain enjoys hang gliding on his last flight, he jumped off a cliff 520 high he landed 450 from the base of the cliff how far di
belka [17]

Answer:

Brain travelled 687.68 from the cliff.

Step-by-step explanation:

Given that:

Height of the cliff = 520

Base of the cliff = 450

The distance will form the hypotenuse of right angled triangle.

Pythagorean theorem states square of hypotenuse of right angled triangle is equal to the sum of squares of base and height of triangle.

Using pythagorean theorem;

a = 520, b=450, c = hypotenuse

a^2+b^2=c^2\\(520)^2+(450)^2=c^2\\270400+202500=c^2\\472900=c^2\\c^2=472900

Taking square root on both sides

\sqrt{c^2}=\sqrt{472900}\\c=687.68

Hence,

Brain travelled 687.68 from the cliff.

6 0
3 years ago
Help me please thank you
My name is Ann [436]

most likely 46 cents

Step-by-step explanation:

Because 2.75 divided by six is 0.45833333333333.... each apple costs that much. Since you can’t have 0.8 of a cent, the answer has to be 46 cents

3 0
3 years ago
Read 2 more answers
Which cypress ion is equivalent to 4(x+2) ?<br> 6x<br> 4(x)+4(2)<br> 4(x)+4<br> 8x
jenyasd209 [6]

Answer:

4(x) + 4(2)

Step-by-step explanation:

4(x+2) = 4(x) + 4(2)

Distribution property

5 0
3 years ago
Heelppppppppp!!!!! Please?!
Gre4nikov [31]

To calculate h evaluate inside the square root before taking the square root

h = √(7² - 3.5²) = √(49 - 12.25) = √36.75 = 6.06 ( to 2 dec. places)


3 0
3 years ago
Read 2 more answers
Please help. PLEEEEEEEEEEASSSSSSEEE<br> There are three right answers I don’t need and explanation
Angelina_Jolie [31]

Answer:

D,E,C

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • A car uses 1 9/8 of gasoline to travel 50 3/4. how far can the car travel in miles on 1 gallon of gasoline
    8·1 answer
  • What property was applied to solve the equation below? I really need help. Picture included.
    10·1 answer
  • Solve algebraically for all values of x
    13·1 answer
  • Find the vector equation for the line of intersection of the planes 5x+3y−2z=−45x+3y−2z=−4 and 5x+5z=0
    12·1 answer
  • Which relation is a function?<br> Of<br> Mark this and return<br> Save and Exit<br> Next<br> Submit
    12·1 answer
  • What is 87 percent of 1000
    7·2 answers
  • If the total is 40,000,000,000 what does x equal?<br> <img src="https://tex.z-dn.net/?f=x%5E%7B10%7D" id="TexFormula1" title="x^
    10·2 answers
  • Please help if you want brianleist!! :) uhm don't mind update- NO LINkS child..
    7·2 answers
  • 15.7 is what percent of 7852
    5·1 answer
  • One solution of the quadratic equation X2 – 19x + 48 = 0 is 3. What is the other solution?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!