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Each group of 3 is one octal digit made up of:
R = 4
W = 2
X = 1
RWX = 4 + 2 + 1 = 7
R-X = 4 + 1 = 5
R-- = 4
So rwx r-x r-- is 754
Ocie Koss
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775 x 4?
3100 in decimal. 3764 in octal.
What is the number 528 in octal?
1020= 1 x 83 + 0 x 82 + 2 x 81 + 0 x 80
What does 2 pi r or 2 pi radius mean?
2 x Pi x r is equal to the circumference of a circle whose radius is equal to r.
Completely factor the expression 4q2 27r4?
2 x 2 x q x q x 3 x 3 x 3 x r x r x r x r
What does reciprocal math term mean?
The reciprocal of any non-zero number is one divided by that number. The reciprocal of 0 is not defined. For example, if R(x) represents the reciprocal of x, then R(6) = 1/6 R(5/7) = 1 / (5/7) = 1*(7/5) = 7/5 R(x) = 1/x
Show the octal representation of these permissions (i) rwxr-xrw- (ii) rw-r----- (iii) --x-w-r--.?
(i) rwxr-xrw- = 764 (ii) rw-r----- = 640 (iii) --x-w-r-- = 216
Why are octal or hexadecimal number systems used as shortcut notations?
With computers it is often bit (binary digit) patterns that matter and with octal or hexadecimal numbers it is easy to convert them to binary as each digit is represented by an exact number of binary digits (3 for octal, 4 for hexadecimal) without any waste.Using *nix access permissions as an example, the basic permissions are split into 3 groups (Owner, Group, World), each with 3 possible permissions (Read, Write and eXecute). These are stored as a bit pattern: if set the permission is granted, if not set permission is not granted. A file with rwxr-x--x (rwx for owner, r-x for group and --x for world) is stored in binary as 111101001 which can be represented in octal easily by reading it in groups of 3 bits: 111101001 → 111 101 001 = 0751, or in hexadecimal by splitting it into groups of 4 bits: 111101001 → 1 1110 1001 = 0x1e9; but to convert it to decimal requires: 256 + 128 + 64 + 32 + 8 + 1 = 489.Similarly, going the other way: what permissions are represented by 420?420 to binary:420 ÷ 2 = 210 r 0210 ÷ 2 = 105 r 0105 ÷ 2 = 52 r 152 ÷ 2 = 26 r 026 ÷ 2 = 13 r 013 ÷ 2 = 6 r 16 ÷ 2 = 3 r 03 ÷ 2 = 1 r 11 ÷ 2 = 0 r 1→ 420 = 110100100 in binary = rw-r--r--420 in octal is 0644 and in hexadecimal is 0x1a40644 to binary: 110 100 100 → 110100100 as before [much quicker and easier]0x1a4 to binary: 1 1010 0100 → 110100100 again.
What is the decimal equivalent of the octal number 1253?
1253 octal = (1 x 512) + (2 x 64) + (5 x 8) + (3 x 1) = 683
775 x 4?
3100 in decimal. 3764 in octal.
What is the octal equivalent of decimal number 20?
24 (2 x 81 + 4 x 80)
What is the number 528 in octal?
1020= 1 x 83 + 0 x 82 + 2 x 81 + 0 x 80
What does radius squared mean?
Radius times two (r x r)
How do you convert octal numbers to decimal numbers?
There are four main number systems in the world: the binary system, the octal system, the decimal system and the hexadecimal system. Since this article deals with 'octal to decimal: how to convert', we will discuss these two systems first before we proceed to the octal number system conversion to decimal.Decimal and Octal Number SystemEveryone knows the decimal number system. It is the main number system we use today, and has 10 discrete digits from 0 to 9. The octal system on the other hand has only 8 digits (hence the name octal). The numbers in an octal system are only from 0-7. That means, there is no 8 and 9 in a normal octal system.Now, while the decimal system is the most commonly used number system for most of the counting that we have to do, where is the octal system used? The octal system is used mainly in computer programming languages. There is a relationship between the octal and the binary system, which makes it very useful while programming computers. It is also often used in place of the hexadecimal system (16 digits), as it has fewer digits.Octal to Decimal: How to ConvertOctal to decimal conversion is one of the most commonly taught problem solving exercises in computer basics. So is there an octal to decimal formula? Yes, an octal number can be converted to a decimal number using the following formula:Decimal Form = Ʃ(ai x 8i)In this formula, 'a' is the individual digit being converted, while 'i' is the number of the digit counting from the right-most digit in the number, the right-most digit starting with 0.For example:Convert (765)8 into decimal:(765)8 = (7 x 82) + (6 x 81) + (5 x 80)= (7 x 64) + (6 x 8) + (5 x 1)= 448 + 48 + 5= 501Hence (765)8 = (501)10We'll take one more example with a four digit number:Convert (1336)8 to decimal:(1336)8 = (1 x 83) + (3 x 82) + (3 x 81) + (6 x 80)= (1 x 512) + (3 x 64) + (3 x 8) + (6 x 1)= 512 + 192 + 24 + 6= 734Thus (1336)8 = (734)10To convert an octal number to decimal, write out the number to be converted, placing each digitunder the proper positionExample:Next, multiply the decimal equivalent by the corresponding digit of the octal number; then, add thiscolumn of figures for the final solution:Solution: 7438 is equal to 4831Now follow the conversion of 265258 to decimal:Solution: 11,60510 is the decimal equivalent of 26,5258To convert a fraction or a mixed number, simply use the same procedure
What does 2 pi r or 2 pi radius mean?
2 x Pi x r is equal to the circumference of a circle whose radius is equal to r.
How do you get the square footage of a radius?
The square footage of a radius is meaningless, but if you mean the square footage of a circle of radius say R, the answer is 3.142 x R x R
What does 3 r mean in pipe?
(3) x (r) which means 3 times its radius.
What is radius square mean?
radius is half of the diameter of a circle. Squared means to multiply it by itself. r2 = r X r r = radius = 1/2 X diameter
