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Vlad1618 [11]
4 years ago
7

Answer this pic please and explain how to do it

Mathematics
1 answer:
yuradex [85]4 years ago
5 0

Balancing of equations as shown in the attached document requires that the number of atoms, of an element, on the left of the equation is equivalent to the number of the atoms of the same element on the right of the equation. This is in observation of the conservation of mass rule of thermodynamics. Mass and energy cannot be destroyed nor created, it can only be transformed from one form to another. In this case, mass remains the same in the system since this is a chemical reaction- only the bonds between atoms are being rearranged.

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Lubov Fominskaja [6]

Answer:

4/5

Step-by-step explanation:

7 0
3 years ago
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the coordinates of a quadrilateral are (5,8), (7,10), (9,12) and (11,14). after a transformation, the sign of the x-coordinate a
BartSMP [9]

Answer:

The quadrilateral is rotated 180° about the origin

Step-by-step explanation:

Lets revise some transformation

- If point (x , y) reflected across the x-axis

∴ Its image is (x , -y)

- If point (x , y) reflected across the y-axis

∴ Its image is (-x , y)

- If point (x , y) reflected across the line y = x

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- If point (x , y) reflected across the line y = -x

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- If point (x , y) rotated about the origin by angle 90° anti-clock wise

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- If point (x , y) rotated about the origin by angle 90° clock wise

∴ Its image is (y , -x)

- If point (x , y) rotated about the origin by angle 180°

∴ Its image is (-x , -y)

* There is no difference between rotating 180° clockwise or

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* In our problem:

- The sign of the x-coordinate and the sign of the y- coordinate

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7 0
3 years ago
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Alexandra [31]

Answer:

Option D Both students could be correct. Because the numbers are given in the original sequence, it is possible to find a common difference and common ratio between the successive terms.

Step-by-step explanation:

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__

An arithmetic sequence has a common difference. Here, that difference would be 11 -(-5.5) = 16.5 if the sequence is arithmetic. That difference would mean the next two terms are ...

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These descriptions match those offered by the students, so both could be correct.

5 0
3 years ago
Read 2 more answers
Which student evaluated the power correctly?
Colt1911 [192]

Answer:jerry

Step-by-step explanation:

Just plug in the calculator and see which

6 0
3 years ago
The volume of a trianglular prism is 54 cubic units. What is the value of x?<br> 3<br> 5<br> 7<br> 9
irina [24]

Answer:

X is 3 units.

Step-by-step explanation:

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6 0
3 years ago
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