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Olin [163]
3 years ago
13

The number 0.4 can written as 4/10, so it is a rational number

Mathematics
2 answers:
Elden [556K]3 years ago
5 0
Yes because rational numbers can be turned into a fraction and as you see that's what you did...

0.4=4/10

Your answer is yes it is a rational number.
Dima020 [189]3 years ago
4 0
True

An easy way to tell if a number is irrational if you cannot count it, or convert it into a decimal/fraction.

Such as pie, square root of 11, etc.
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The diagram shows two nested triangles that share a vertex.Find a center and a scale factor for a dilation that would move the l
nasty-shy [4]

Transformation that changes the size of a shape is referred to as dilation.

  • The scale factor that moves the large triangle to the small one is 1/5
  • The center of dilation is: (-1,1)

<u>The center of dilation</u>

From the diagram (see attachment), the triangles share a common vertex at (-1,1)

This means that, the center of dilation is (-1,1)

<u>The scale factor of dilation</u>

To do this, we divide the side length of the small triangle with the corresponding side of the large triangle.

From the attached image:

\mathbf{Base\ of\ small\ triangle = 1}

\mathbf{Base\ of\ large\ triangle = 5}

So, the scale factor (k) from large to small is:

\mathbf{k = \frac{Base\ of\ small\ triangle}{Base\ of\ large\ triangle} }

\mathbf{k = \frac{1}{5} }

Read more about dilation at:

brainly.com/question/13176891

3 0
3 years ago
4. At the Burger Shack, Jimmy orders two burgers at $8.95 each, a side of fries for $3.50, and a com
jenyasd209 [6]

Answer:

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Step-by-step explanation:

explanation is in the picture above

3 0
3 years ago
Read 2 more answers
624 feet to 702 feet state whether the percent of the change is an increase or decrease
Ghella [55]

Answer:

The percent of change is an increase.

Step-by-step explanation:

624 has been changed to 702.

Percent change = [(Value after - Value before ) / Value before]*100

                          =\frac{702-624}{624}*100

                          =\frac{78}{624}*100

So we can clearly see that percentage change is a positive change. This means that the Value after change is higher than value before the change. So the percent of change is an increase.

8 0
3 years ago
The angle of elevation from Madison to the top of the Statue of Liberty is 79 degrees. If Madison is standing 58.2 feet from its
lana66690 [7]
To solve this problem you must apply the proccedure shown below:

 1. You have the following information given in the problem:

 - <span>The angle of elevation from Madison to the top of the Statue of Liberty is 79 degrees.
 - Madison is standing 58.2 feet from its base.

 -Madison is 5 feet tall.

 2. Therefore, you have:

 Sin</span>α=opposite/hypotenuse
<span>
 Sin(79°)=x/58.2
 x=(58.2)(Sin(79°))
 x=57.13 ft

 3. Now, you can calculate the height of the Statue of Liberty, as below:

 height=x+5 ft
 height=57.13 ft+5 ft
 height=62.13 ft

 4. Therefore, as you can see, the answer is: 62.13 ft
</span>
4 0
3 years ago
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How exactly do i name the 4 ways?
Vladimir79 [104]
Well, basically there are

acute angle, right angle, obtuse angle ..

and also we use concurrent angles, corresponding angles, alternate angles, vertically opposite angles,..

..hope it helped a bit
5 0
3 years ago
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