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seropon [69]
3 years ago
6

Strictly speaking, in order for matter or energy to be conserved, a system must be _____.

Mathematics
1 answer:
Dmitry [639]3 years ago
8 0

a closed system. Hope this helps!

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Which expression is equivalent to 21 × 7?
Crank
The answer would be A) because they both have the same result answer.
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3 years ago
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Parallel slope of y= 1/2 x - 1
sweet [91]

Answer:

When looking for parallel slopes of another linear equation you would simply keep the slope that you already have

In y=1/2x-1  (your slope is 1/2)

The parallel slope is 1/2

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3 years ago
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Equations with variables. Please explain it to me.
irinina [24]

Answer:

Equation: 10x-12=6x-6

X: 3/2 or .5

Perimeter of square and triangle are both 3.

Step-by-step explanation:

Square:

4(2.5x-3) {The four represents the amount of sides}=

10x-12

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3(2x-2)=

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Since they have the same perimeter the equation is

10x-12=6x-6

10x-6x=12-6

4x=6

x=1.5

Square pt 2:

4(2.5(3/2)-3)=

4(3.75-3)=

4(0.75)=

3

Triangle pt 2:

3(2(3/2)-2)=

3(3-2)=

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6 0
4 years ago
Point S is not on line k. How many different planes contain both point Sand<br> line k?
goldenfox [79]
There’s not enough context could you maybe post a picture?
5 0
3 years ago
What is the sum of (–2.1x + 3.7) and (5 + 4.9x)?
MAXImum [283]
Hello!

When you use sum you add

-2.1x + 3.7 + 5 + 4.9x

Now you add the variables and the constants

-2.1x + 4.9x = 2.8x

3.7 + 5 = 8.7

Combine the two

2.8x + 8.7

The answer is 2.8x + 8.7

Hope this helps!
3 0
3 years ago
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