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GuDViN [60]
3 years ago
12

Explain to a classmate why 0.8 and 0.80 name the same number.

Mathematics
1 answer:
AlladinOne [14]3 years ago
7 0

Because the decimal point dosent change therefor u have the same number.

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Decimal point should be moved places to the right.
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I WILL GIVE BRAINILEST!!! Elvira is interested in collecting data about how many students use each of the tables during each lun
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yes

Step-by-step explanation:

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Solve the system of equations x+y=-8 and -9x-6y=60 by combining the equations
TiliK225 [7]

Answer:

x = - 4    y = - 4

Step-by-step explanation:

x+y= - 8

-9x-6y=60

First, solve for x in the first equation:

x+y = - 8       Subtract y from both sides

x + y - y = -8 - y    y cancels on the left

x = - 8 - y

Now plug in what you found for x into the 2nd equation and solve for y.

- 9x - 6y = 60

-9(- 8 - y) - 6y = 60   Multiply out

72 + 9y - 6y = 60

72 + 3y = 60  Subtract 72 from both sides

72 - 72 + 3y = 60 - 72    72 cancels on the left

3y = - 12     Divie both sides by 3

3y/3 = -12/3     3 cancels on the left because 3/3 = 1

y = -4

Now plug your answer for y back into the first equation to get x.

x + y = -8

x + (-4) = - 8  Add 4 to each side

x - 4 + 4 = - 8 + 4   4 cancels on the left

x = -4

x = - 4 and y = - 4

8 0
3 years ago
Will mark as brainliest plz help​
RUDIKE [14]

Answer:

30 is answer bro

Step-by-step explanation:

hope it wI'll help u

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What is the relationship between a rotation and a reflection? Sketch a diagram that supports your explanation.
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Answer with Step-by-step explanation:

Relationship between rotation and reflection:

In reflection, the pre-image gets flips across the same line.

whereas in rotation, the pre-image get spin around a point.

Rotations can be represented as two reflections i.e. the composition of reflections over two intersecting lines is always equal to rotation of that object.

In rotation, the object will get turned, this is turning some degree either clockwise or anti-clockwise.

Hence, rotation requires spinning and reflection requires flipping.

6 0
3 years ago
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