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yoojayypee1236
30.06.2019 •
Mathematics
The length of a rectangle is 25 feet . the width is 8 feet. what is the perimeter of the rectangle
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Ответ:
Perimeter is found by adding all of the sides together. Since it's a rectangle, you have two sets of two identical sides.
Perimeter = length + width + length + width
P = l + w + l + w
P = 25 + 8 + 25 + 8
P = 66 feet
Ответ:
It is given that a computer password must be eight characters long. We are supposed to use only the 26 letters of the alphabet. No where has it been mentioned that repetition of letters is not allowed. Thus, assuming repetition of letters, we can see that the any of the eight letters of the password can be any one of the 26 letters of the alphabet.
Therefore, the first letter of the password can be put in 26 ways.
Likewise, the second letter of the password too can be put in 26 ways, so on and so forth.
Therefore, the total possibilities of an 8 letter password will become:
Which is approximately, 208 Billion!