12.2 - N =3.3 i need heeeeelpXD

2 answers:

6 0

Remember you can do ANTYHING to an equation as long asyou do it to both sides

12.2-N=3.3
minus 3.3 both sides
12.2-3.3-N=3.3-3.3
8.9-N=0
add N to both sides
8.9+N-N=0+N
8.9+0=N
8.9=N

Sergeu [11.5K]2 years ago

5 0

If you do 12.2-3.3 youll get your answer

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The density of iron is 7.8 g/cm3 . An iron beam has a volume of 10,504 cm³.

myrzilka [38]

The formula to find density is Mass/Volume

We have
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6 0

3 years ago

Read 2 more answers

A quadrilateral has vertices A, B, C, and D. A line of reflection is drawn so that A is 6 units away from the line, B is 4 units

Kryger [21]

Answer:

The correct option is O B'

Step-by-step explanation:

We have a quadrilateral with vertices A, B, C and D. A line of reflection is drawn so that A is 6 units away from the line, B is 4 units away from the line, C is 7 units away from the line and D is 9 units away from the line.

Now we perform the reflection and we obtain a new quadrilateral A'B'C'D'.

In order to apply the reflection to the original quadrilateral ABCD, we perform the reflection to all of its points, particularly to its vertices.

Wherever we have a point X and a line of reflection L and we perform the reflection, the new point X' will keep its original distance from the line of reflection (this is an important concept in order to understand the exercise).

I will attach a drawing with an example.

Finally, we only have to look at the vertices and its original distances to answer the question.

The vertice that is closest to the line of reflection is B (the distance is 4 units). We answer O B'