Contrast is important when designing a web page for many reasons. One of the most important reasons is because if you don't have contrast, you won't be able to read what is written on the page. Your eyes will have to strain really hard or it just simply won't be possible to read at all. Another really important reason is that contrast makes the web page look visually appealing. Whereas, if you don't have contrast it is all kind of jumbled together. As you can see there is a plethora of reasons contrast is important.
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Answer:
It will either convert the file automatically into the program so you can edit it on the different platform or it will not be able to open the document at all.
Explanation:
I have personally done this before. Usually I use Word documents, which are .doc and .docx files.
I also run a Linux based OS sometimes (dual boot) and I don't have Microsoft Office products on it. However, Linux does have their own set of products that are similar to it.
I opened a .docx file on the Linux version of Word and it did convert the file into a separate one and I was able to edit it.
However, when I then tried opening the new Linux file type on Word, it was not able to open the document at all.
Therefore, it really depends on what programs have what capabilities. Word can open .doc and .docx. Linux could open their own types as well as .doc and .docx by conversion.
A rule of thumb is just not to change the file format at all. Just stick with the original so you don't lose your file. If you cannot do so, then use a online file converter to change the file type.
Answer:
The answer is:

Explanation:

The test value of statistic t= 

The value of P = P(T>0.56)
=1-P(T<0.56)
=1-0.712
=0.288
- Since the P value exceeds its mean value (0.288>0.05), the null assumption must not be rejected. Don't ignore H0.
- This assertion, it mean length of the tornado is greater than 2.2 miles also isn't backed by enough evidence.