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azamat
3 years ago
14

Which substance has been changed most over time from its original plant material?

Mathematics
2 answers:
juin [17]3 years ago
6 0

Answer:

the answer is b

Step-by-step explanation:

Contact [7]3 years ago
4 0
The answer to this is B. anthracite coal. Organic matter gradually turns into coal over many years of high pressure and temperature under the earth. The lowest form of coal is peat (where it is still recognizably plant matter), followed by lignite, then sub-bituminous coal, then bituminous coal, then anthracite. These are also ordered from lowest to highest composition of carbon.
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Which branch of maths includes the most of other branches symbols/functions ect.​
max2010maxim [7]

Answer:

Algebra is a branch of mathematics dealing with symbols and the rules for manipulating those symbols. In elementary algebra, those symbols (today written as Latin and Greek letters) represent quantities without fixed values, known as variables.

Step-by-step explanation:

7 0
2 years ago
The digits 1-5 are used for a set of locker codes. Suppose the digits cannot repeat. Find the number of possible two digit and t
Archy [21]
So you would do
5×4×3= 60
and
5×4=20
so, for a 3 digit code there are 60 possibilities and for a 2 digit code there are 20 possibilities.
7 0
3 years ago
Read 2 more answers
the sum of three numbers is 78. the third number is 3 times the first. the first number is 7 more than the second. what are the
Lena [83]

Answer:

17

Step-by-step explanation:

x+3x+x-7=78

5x-7=78

5x=78+7

5x=85

x=85/5

x=17

4 0
2 years ago
Read 2 more answers
What is the slope line that passes through the points (10, 8) and (-15, 18)? Write your answer in simplest form
klasskru [66]

Answer: y=-\frac{2}{5}x+12

<em>y = mx + b</em>

m = slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}=\frac{18-8}{-15-10}=\frac{10}{-25}=\frac{2(5)}{-5(5)}=-\frac{2}{5}

<u>The y-intercept(b) can be found by substituting a point into the function.</u>

y = -\frac{2}{5}x + b \\\\8=-\frac{2}{5}(10) + b\\\\8=-4+b\\\\b=8+4=12

<u>Therefore, the function is:</u>

y=-\frac{2}{5}x+12

3 0
3 years ago
Luke is having a birthday party. He can spend no more.than $300.00. He buys decorations that cost $75.00. He wants to spend the
Fiesta28 [93]

Answer:

$300 <u>< </u> $75.00 + 15 x

Step-by-step explanation:

hope that helps

6 0
3 years ago
Read 2 more answers
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