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stepan [7]
3 years ago
12

Why is it important to line up the digits in each place value position when subtracting?

Mathematics
2 answers:
Aleksandr [31]3 years ago
5 0
It would not make sense if you were to do 
   34 
     28
The right way is 

34
28

Another example is that if you were to subtract by 1 digit by 2

78
  1

This is the wrong one

78
1


Katarina [22]3 years ago
5 0
So that you don't subtract the wrong numbers and get the wrong answers. ,
123
-----
386
_____
?
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Rotate angle ABC 90 degrees clockwise about the origin and then reflect over the x-axis
Lady_Fox [76]

Rotation and reflection are instances of transformation

See attachment for the new position of  \triangle ABC

From the question, we have:

A = (-1,1)

C = (-2,4)

The rule of 90 degrees clockwise rotation is:

(x,y) \to (y,-x)

Using the above transformation, the new points would be

A' = (1,1)

B' =(3,3)

C' = (4,2)

The next transformation is reflection over the x-axis

The rule of this transformation is:

(x,y) \to (x,-y)

So, the new points would be:

A" = (1,-1)

B" = (3,-3)

C" = (4,-2)

See attachment for the new points

Read more about transformation at:

brainly.com/question/11709244

8 0
2 years ago
All the sides of a hexagon become three times the original length. find the ratio of areas of the new and old hexagons.
Anastaziya [24]
To determine the ratio, we need to know the formula of the area of an hexagon in terms of the length of its sides. We cannot directly conclude that the ratio would be 3, the same as that of the ratio of the lengths of the side, since it may be that the relationship of the area and length is not equal. The area of a hexagon is calculated by the expression:

A = (3√3/2) a^2

So, we let a1 be the length of the original hexagon and a2 be the length of the new hexagon.

A2/A1 = (3√3/2) a2^2 / (3√3/2) a1^2
A2/A1 = (a2 / a1)^2 = 3^2 = 9

Therefore, the ratio of the areas of the new and old hexagon would be 9.
7 0
3 years ago
-12x-14=-62<br> -12x = ?
KIM [24]

Answer: No solution

Step-by-step explanation: -12x-14=-62-12x

You would have to simplify the -12x but you can't so this would be a no solution.

5 0
3 years ago
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Aleonysh [2.5K]

Answer:

1,404,928 is the volume of a cube with a side length that measures 112 ft

3 0
3 years ago
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How many ounces in all
Shalnov [3]

Answer:

35+8=43 ounnces

Step-by-step explanation:

3 0
2 years ago
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