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
svetoff [14.1K]
2 years ago
7

Where does the energy stored in coal originally come from?

Mathematics
1 answer:
Tanzania [10]2 years ago
4 0

Answer:

C . The sun

plants absorb light which make carbohydrates which makes a part of bodies of animals and plants . When they die this compound in their bodies which later became coal

You might be interested in
Explain how to find the degree of a polynomial.
Leto [7]
The degree of a polynomial is the highest number as an exponent in a term, for example, 5x^3+5x^2, 3 is the degree. To find it, you need to either just find the highest number or add up multiple degrees in one term. An example of this is 5x^3y^3+4x^3y^2. Since 3+3=6 and 3+2=5, the first term has the highest degree.
6 0
2 years ago
Solve by completing the square:<br> x^2 + 3x - 9 = 0
tekilochka [14]

Answer:

Step-by-step explanation:

x^2 + 3x - 9 =0

By comparing with the equation ax^2+bx+c = 0,

we get,

a = 1, b=3, c = -9

we know the formula for x is,

x = (-b±√(b^2 - 4ac))/2a

x = (-3±√45)/2

x = (-3±3√5)/2

x = (-3+3√5)/2, (-3-3√5)/2

6 0
3 years ago
Read 2 more answers
Help me please I forgot my notes at school
sukhopar [10]
1/2 x 6 = 3
3 x 8 = 24
24/6 = 4
4 - 1 = 3

3 is your answer

hope this helps
6 0
2 years ago
Read 2 more answers
0.1 is 10% of what number?
stiv31 [10]
Let's assign a variable that is the number when multiplied by 10% it is equal to 0.1.

Well let that be x.

Now we want to convert the 10% into a decimal. To convert a percent into a decimal, simply move the % sign two places to the left and make it into a decimal point.

When we say "of" in mathematics what we really mean is to multiply.

0.10 * x = 0.1

That is the equation we need to find the value of x for.

Divide both sides by 0.10

0.10 * x = 0.1

The 0.10 on the left side cancels out.

x = 1

So, the answer to this question is if we multiply 10% by 1 we will get 0.1.
7 0
3 years ago
Read 2 more answers
Can someone PLEASE help? i need this done!
iren [92.7K]
It would be .43, rounded. You get this answer by taking all of the 10th graders (14) and looking at how many prefer sporting events (6). Then, you simply form a decimal from 6/14, and that comes out to .428, and .43 rounded up. I hope this helps! :) 
3 0
3 years ago
Other questions:
  • 2/5 (6-5p) simplified expression <br> Thank you
    14·1 answer
  • You decide to put $175 in a savings account to save for a $3,000 down payment on a new car. If the account has an interest rate
    12·1 answer
  • BRAINLIEST TO THE FIRST 2 TO ANSWER
    7·2 answers
  • Help me plzzzzzzzzzzzzzzzzzzz
    12·1 answer
  • Dostaniecie 5 gwiazdek i serce a może nawet naj jak odpowiecie na następujące pytanie: wypisz pięć kolejnych różnic od 0
    10·1 answer
  • Where are the black dots located at!?!?
    9·2 answers
  • Angles formed by parallel lines and transversal
    14·1 answer
  • Find the measure of each angle of an isosceles right-angled triangle
    5·1 answer
  • An observer at the top of a tower of height 20m sees a man due East of him at an angle of depression of 27°. He sees another man
    12·1 answer
  • Sue has a recipe that calls for 6 cups of flour for every cup of salt. If she uses 4 cups of flour, how much salt does she need
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!