Where does the energy stored in coal originally come from?
A. The Earth's Core
B. Minerals
C. The Sun
D. Radioactive material in the crust

Answers

Answer 1

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


Related Questions

ctions: Write your answer in the box. Do not use spaces
What is the value of the following expression if x 22: "five times a number
decreased by 2"?

Answers

Answer:

5x - 2

Step-by-step explanation:

if x is your number its 5 lots of your number - 2

What is the range -4 9 1 -9 0 0 5 3 2

Answers

The range is 18

What is the range of the given numbers?

The Range (Statistics) The Range is the difference between the lowest and highest values. Example: In {4, 6, 9, 3, 7} the lowest value is 3, and the highest is 9. So the range is 9 − 3 = 6. It is that simple!

9  -  -9  =  18

Therefore, The range is 18

The ratio of the surface areas of two spheres is 1:9.
a) What is the ratio of the lengths of their radil? What is the ratio of their volumes?
b) If the volume of the smaller sphere is 64 cubic inches, what is the volume of the larger sphere?
in3

Answers

Answer:

b

Step-by-step explanation:

A square with a length of 4 inches is cut in half diagonally. ​ What is the area of each triangle formed by this cut? ​

Answers

8 sq inches!

You can come to this conclusion by finding that the area of your square is 16 sq. inches, divide that by 2 and you get 8 sq. inches!

Paul has a standard deck of cards. What is the probability that he will choose a 2?

Answers

Answer:

Step-by-step explanation:

The deck is divided into 4 different kinds of cards

clubsdiamondsHeartsSpades

Each kind of card has a 2

So there are 4 twos in a standard deck of cards.

Answer:

P(2) = 4/52P(2) = 1/13P(2) = 0.07692

The average cost of 2 storybooks was 2.45. One of the books cost 2.80. Find the cost of the other book

Answers

Answer:

The answer is simply 26,25/3 which gives that each book costed 8,75 dollars assuming of course that all books have the same price.

What have the Mars rovers discovered about Mars?
A. The crust of Mars contains 2 chemical elements never discovered before.
B. It had similar volcano activity and crust composition to Earth.
C. It has polar ice caps that could become an ocean if Mars were to warm up in the future.
D. The atmosphere of Mars is twice as thick as scientists predicted it would be.

Answers

Answer:D. The atmosphere of Mars is twice as thick as scientists predicted it would be.

Step-by-step explanation:

Question 2 of 10
Which of the following geometric objects occupy one dimension?
Check all that apply.
A. Line
B. Triangle
C. Plane
D. Segment
E. Ray
F. Point

Answers

The answer is D Segment I just did a test with that’s question
Answer:

A. Line

D. Segment

E. Ray

Step-by-step explanation:

Math dimensions include length, width, and height (in that order). The dimension that an object occupies is dependent on how many different measurements, aka dimensions, an object has.

0th Dimension

The first dimension is actually the zeroth dimension. This dimension includes objects that do not have any measurements. A point does not have a length because it only occupies one spot on a plane.

The 0th dimension includes:

Point

1st Dimension

The next dimension, the 1st dimension, has only length. This means the object can travel across the x-axis, but it can only go in one direction.

The 1st dimension includes:

LineSegementRay

2nd Dimension

For this question, the last dimension is the 2nd dimension. The 2nd dimension has both length and width. This means that the object occupies both the x and y-axis.

The 2nd dimension includes:

TrianglePlane

3rd Dimension

The 3rd dimension is not included in the question or the answer choices but is still important. The 3rd dimension has length, width, and height. This occupies the x, y, and z-axis and cannot be graphed on a regular geometric plane. The 3rd dimension is graphed in a geometric space.

The 3rd dimension includes:

CubePrism

Decide if each data set might produce one or more gaps when represented by a histogram. For each data set that you think might produce gaps, briefly describe or give an example of how the values in the data set might do so.

a. The ages of students in a sixth-grade class.

b. The ages of people in an elementary school.

c. The ages of people eating in a family restaurant.

d. The ages of people who watch football.

e. The ages of runners in a marathon.

Answers

There would be a gap in the age of people in an elementary school.

Which option would produce one or more gaps ?

There is a gap in a histogram when there is no data point represented in the data point.

There would be no gap in the ages of students in the sixth grade because their ages would have a range. There would be a gap in the age of people in an elementary school because there would be the ages of the students then the ages of teachers.

The ages of people eating in a family restaurant would have no gap because all ages would be represented. There is no age limit on those that can run a marathon, thus, the age of runners would have no gap.

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The number of months a group of middle-aged men have been on a certain heart medication is normal
distributed with a mean of 8 months and a standard deviation of 2 months. Approximately what percentage
of the men have been taking the medication for between 6 to 8 months?

50%
16%
34%
68%

Answers

Answer:

34 %

Step-by-step explanation:

One standard deviation below  ( 2 months) to the mean

           covers approx 34.1 %

Which best describes the relationship between the lines with equations -9x+9y=1 and 7x+2y=4

Answers

Using the slope of each of the lines, the best statement that describes the their relationship is that they are: neither perpendicular nor parallel.

What is the Slope of Parallel and Perpendicular Lines?

The slope of parallel lines are the same, while that of perpendicular lines are negative reciprocals.

Given the two lines with the following equations:

-9x+9y=1

7x+2y=4

Rewrite both in slope-intercept form as y = mx + b to determine the slope of each line:

-9x + 9y = 1

9y = 9x + 1

y = 9x/9 + 1/9

y = x + 1/9 (slope = 1)

7x + 2y = 4

2y = -7x + 4

y = -7x/2 + 4/2

y = -7/2x + 2 (slope = -7/2).

The slope of both lines are different, so they are not parallel. So also, their slopes are not negative reciprocals.

Therefore, they are neither perpendicular nor parallel.

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After being involved in a car accident last month, Thomas' insurance company has increased his annual premium by
$398.37. Approximately what change will Thomas see on his future monthly statements as a result of the change?
Show work.

Answers

The approximate change that Thomas will see on his future monthly statements as a result of the change is; $33.1975

How to Calculate Monthly Insurance?

We are told that Thomas' insurance company has increased his annual premium by $398.37.

Now, the premium above is the change in his annual premium. Thus, to find the change in his monthly premium, we just divide by 12 months to get;

Change in Monthly statements = $398.37/12

Change in Monthly statements = $33.1975

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A salesman earns $4 commission on all the merchandise that he sells. Last month he sold $9000
worth of merchandise. How much commission (in dollars) did he earn last month?

Answers

Answer:

2250

Step-by-step explanation:

In this problem, you do 9000/4 because he earns $4 commissions, and that will give you 2250.

Please help with work shown will give accommodations!!!

Answers

Answer:

(E) < BDE = 2x + y.

Step-by-step explanation:

As  triangle ABC is isosceles the 2 base angles are equal.

Therefore m < BAC = x.

Consider triangle ABD:

m < BDE = m < BAC + m < ABD ( external angle of a triangle theorem)

So < BDE =  x + x + y = 2x + y.

Someone please help me?

Answers

Answer:

43

Step-by-step explanation:

80-37 = 43

Y=4x+1 function rule table

Answers

Answer:

the table of the function is below

Step-by-step explanation:

9 boxes of cookies cost $38.07. How many boxes did Gina buy if she spent $16.927
please help me asap ​

Answers

She got 4 boxes because 38.07/9 is 4.23 and 16.927/4.23 is 4 so your answer will be 4

Laurie says that 2+3 x 2+3= 13. Ray says that 2+3 x 2+3= 11. Who is correct

Answers

Answer:

Ray

Step-by-step explanation:

Ray is correct . Have a nice day :)

A rectangular prism and its net are shown below.
(All lengths are in feet.)

Answers

The volume of the rectangular prism is 180 ft³, From the net of the prism, A = 10 feet, B = 4 feet, C = 6 feet and D = 3 feet.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

The volume of the rectangular prism = length * width * height = 10 * 6 * 3 = 180 ft³

From the net of the prism, A = 10 feet, B = 4 feet, C = 6 feet and D = 3 feet.

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In this equation f(x) = 3x -15, what is y if x is 9?
*

Answers

Answer:

y = 12

Step-by-step explanation:

To solve this equation... The function is basically:

y = 3x - 15

So by substituting in x=9:

y = 27 - 15 = 12.

y = 12

Hope this helps.

Answer:

y = 12

Step-by-step explanation:

f(x) = y, so to find y, we jut need to substitute 9 for all the x-values in the equation:

f(9) = 3(9) - 15

Simplify:

f(9) = 27 - 15

f(9) = 12

Since f(x) = y

y = 12 when x is 9

Hope this helped!

Which statement about the graph of the quadratic function is NOT true?

Answers

Answer:

2nd option

Step-by-step explanation:

the graph has a minimum value of - 6  ( U ) not a maximum

Answer:

2nd option

Step-by-step explanation:

The graph has a minimum of -6, hence the 2nd option, which states the maximum is 3 is incorrect

What is the solution to the given inequality? 1/2-1/4x>-1/4

Answers

Step 1: Simplify both sides of the inequality.
-1/4 x+1/2 ≥ -1/4
Step 2: Subtract 1/2 from both sides.
-1/4 x+1/2 -1/2 ≥ -1/4 - 1/2
-1/4 x ≥ -3/4
Step 3: Multiply both sides by 4/(-1).
(4/-1)*(-1/4 x) ≥ ( 4/-1)*(-3/4)

The final answer is: x ≤ 3


Hope that helps you<3

Answer:

x ≤ 3

Step-by-step explanation:

[tex]\dfrac{1}{2}-\dfrac{1}{4}x \geq -\dfrac{1}{4}[/tex]

Subtract 1/2 from both sides:

[tex]\implies \dfrac{1}{2}-\dfrac{1}{4}x-\dfrac{1}{2} \geq -\dfrac{1}{4}-\dfrac{1}{2}[/tex]

[tex]\implies -\dfrac{1}{4}x \geq -\dfrac{3}{4}[/tex]

Multiply both sides by 4:

[tex]\implies -\dfrac{1}{4}x \cdot 4 \geq -\dfrac{3}{4} \cdot 4[/tex]

[tex]\implies -x \geq -3[/tex]

Divide both sides by -1 (remembering to flip the sign):

[tex]\implies \dfrac{-x}{-1} \geq \dfrac{-3}{-1}[/tex]

[tex]\implies x \leq 3[/tex]

6. Two sides of a right triangle are 8 and 12. Find the hypotenuse

Answers

Answer:

4√13 inches.

How To Solve

a2 + b2 = c2

82 + 122 = c2

64 + 144 = c2

208 = c2

√208 = √c2

√16√13 = c

4√13 inches = c

A total of 750 tickets were sold for the school play. They were either adult tickets or student tickets. There were 50 more student tickets sold than adult tickets.
How many adult tickets were sold?
1 adult tickets
х
5
?

Answers

Answer:

350 adult tickets were sold.

Step-by-step explanation:

Let's set up some values:

x = adult tickets

x + 50 = student tickets, since there were 50 more student tickets than adult tickets.

Now, let's set up our equation. If these two values add up to 750 tickets, then we can conclude the following:

(x) + (x + 50) = 750

2x + 50 = 750

2x = 700

x = 350 adult tickets. This means there were 400 student tickets sold.

A circular swimming pool has a radius of 8
feet. Which measurement is closest to the area
of the swimming pool in square feet?

Answers

area of swimming pool = 28,952.9

Answer: 706.5

Step-by-step explanation:

no promisees that  its right

a.
16. Which expression is equivalent to
4(b + 11)
a. 4b +44
b. 4b - 44
4b + 11
d. b + 44
C.

Answers

Answer: It would be 4b+44

Step-by-step explanation:

This is the distributive property! so a(b+c)=ab+ac

In this case–4b+44!

Answer:

A. 4b + 44

Step-by-step explanation:

To simplify the expression, we can distribute the 4 to each term in the parenthesis, which means to multiply 4 be each term.

4(b) + 4(11) = 4b + 44

Therefore, the correct option is A.

hope this helps!

In which function is x = 2 mapped to 32?
O 5x)=-3x4-4
O g(x) = 4(X+3)2-68
• A(x) = 3x
O Jx) = 2x-62

Answers

Option B

Verification:-

Find g(2)

4(x+3)²-684(2+3)²-684(5)²-684(25)-68100-6832

Verified

find x. not sure what it is​

Answers

Answer:

x=29°

Step-by-step explanation:

angle measure of circular arc=180-122=58°

x=1/2×58=29°

Find the 60th term of the following sequence.
8, 16, 24. ...

Answers

Answer:

Step-by-step explanation:

Remark

You want the 60th term of the arithmetic (?) sequence given.

Formula

L = a + (n - 1)*d

Givens

L = ?

a =  8

d = 8

n = 60

Solution

L = 8 + (60 - 1)*8

L = 8 + 60*8 - 8

L = 480

Answer

The 60th term is 480

Answer:

Step by step explanation :

As we know

[tex]\:\bf\boxed{an\:=\:a\:+\:(n\:-\:1)\:d}[/tex]

where,

an = the nth term in the sequence

n = the term

d = common difference

a = first term of the AP.

Here,

an = a60

n = 60

d = 16 - 8 = 8

a = 8

Now,

[tex]\:\mathsf{a60\:=\:8\:+\:(60\:-\:1)(8)}[/tex]

=> [tex]\:\mathsf{a60\:=\:8\:+\:(59)(8)}[/tex]

=> [tex]\:\mathsf{a60\:=\:8\:+\:472}[/tex]

=> [tex]\:\bf{a60\:=\:480}[/tex]

Therefore the 60th term of the AP is 480.

HELPPPPPPPPPPPPPPPPP

Answers

The formula for the surface area of a rectangular prism: A=2(wl+hl+hw)
Length=5
Width=4
Height=2

Solution
A=2(wl+hl+hw)=2·(4·5+2·5+2·4)=76
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