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Numbers

Numbers are our way to quantify, label, and organize the world around us in a logical manner. However, the systems used to obtain this goal differ geographically, historically, and by relative utility. All questions pertaining to numbers, including historic labeling systems, bases of numerical systems, constants, and the various ways they're grouped together, should be placed into this category.

62,166 Questions
Math and Arithmetic
Prime Numbers
Numbers

The square of certain number exceeds 24 by 5 times the numberwhat is the number?

x2-5x-24=0 (x+3)(x-8)=0 x=8,-3

putting the value

64-40-24=0 64-64=0

14.6k
Playstation Network
Prime Numbers
Numbers

Are there any even prime numbers other than two?

No, the number 2 is the only even prime number. All other even numbers (4, 6, 8, etc.) are divisible by 2. (This is due to the definition of an even number as divisible by 2.) Thus, 2 is the only even number that can still be prime - the rest have at least one divisor other than 1 and themselves.

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Math and Arithmetic
Numbers

Can the denominator of a rational number be zero?

Josh mows lawns. He wants to pick up some customers but wants to know how long it will take before saying yes to all of them. He mows 3 of the lawns in 72 minutes. Write an equation that will allow Josh to calculate the time it would take to mow any given number of lawns.

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Numbers

What number is the opposite of 0.93?

In number systems , the opposite of the number can be represented by changing and reversing the sign of the number. If 0.93 is the number then the opposite of the number would be -0.93

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Numbers

Is 0.3 bigger than 0.03?

Yes, 0.3 is bigger, because it has less zeros, and the means the number must be less

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Math and Arithmetic
Numbers

How much is 10 raise to power -15?

10 to the power of -15 is 1/10^15. (1/1,000,000,000,000,000 [15 zeroes])
It can also be written as 0.000000000000001 (There are 15 zeroes).

OR -1,000,000,000,000,000 (15 zeroes).


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Roman Numerals
Numbers

What is XXXVIII in Hindu- Arabic numbers?

XXXVIII = 38

The hindu-arabic numeral system can be found in related link (pictures), as I cannot put pictures here.

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Roman Numerals
Numbers

What is the roman numeral for 365?

CCCLXV

100

100

100

50

10

5

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Math and Arithmetic
Numbers
Rounding and Estimating Numbers

What is 765 903 rounded to the nearest ten thousands?

700,00

234
Math and Arithmetic
Sentence and Word Structure
Numbers

How do you write 38 in words?

Thirty-eight.

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Playstation Network
Math and Arithmetic
Numbers

How do you write 60 million in number form?

Something that is a million starts on the left of 6 digits before the decimal point. For instance, 1 million is 1,000,000.0. Then, 60 million in number form is:

60,000,000

479480481
Numbers
Mathematical Constants
Complex Numbers

How do you enter an imaginary number in a scientific calculator?

Some scientific calculators can't handle complex or imaginary numbers. If you happen to have a special calculator that does, probably the manual will tell you how to enter them.

The HP 48 and up series does. It depends on if your calculator is in Polar Coordinate mode or X-Y coordinate mode, but a quick way to get the imaginary number i (regardless of which mode the calculator is currently in), is to press -1, then 'square root' button.

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Math and Arithmetic
Numbers

What is the sum of the first 50 natural numbers?

1, 2, 3, 4, . . . . , 49, 50. Therefore, 1275 is the sum of positive integers up to 50.

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Algebra
Factoring and Multiples
Numbers

What are the shared prime factors of 36 and 144?

2 and 3. In fact, 2 and 3 are the ONLY prime factors of both.

36 = 22 x 32.

144 = 24 x 32.

488489490
Math and Arithmetic
Statistics
Numbers

What is the smallest number that rounds to 460 to the nearest tens?

455.

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Numbers

How do write 24.357 in word form?

24.357 is twenty-four and three hundred fifty-seven thousandths.

123
Math and Arithmetic
Algebra
Numbers

What is 40 cubed?

Cubed means to take whatever number and multiply that number by itself three times. So 40 cubed means to take 40 times itself three times. Be very careful because it's not 40 times 3, which is a very common mistake! It's 40 times itself 3 times.

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Math and Arithmetic
Numbers

What numbers add up to make 666?

666 is the sum of the first 36 numbers: 1+2+3+4... + 36 = 666.

In the book of Revelation, it was most likely intended as a gematria reference; the sum of the numerals represented by hebrew letters in a name. Various candidates have been suggested throughout history.

For example, the hebrew letters of "Caesar Nero" would sum to 666. The roman numerals in "Ellen Gould White" add to 666 (interpreting W as VV and U as V). If you use the code A=101, B=102, etc, then "Hitler" will add up to 666.

Actually, if you can make up the rules as you go along, it's not hard to do with any name at all. Just pick a favorite bogeyman, say "Bill Gates", and try various codes. Aha! the ASCII values in "BILL GATES" (all caps) sum to 663, and then you can add 3 since he's really Bill Gates III.

It's been done with Martin Luther, Muhammad, Ronald Reagan, etc. If necessary, spell the name in Latin, or make up an official-sounding title and add up its roman numerals, and then find lots of subjective and cherry-picked evidence supporting why your target is the Beast of Revelation. For example:

The Roman numerals in the blasphemous title of the pope who claims to substitute for God, forgiving sins, etc., VICARIVS FILII DEI, V=5, I=1, C=100, L=50, D=500; add up to 666: 5+1+100+1+5+1+50+1+1+500 +1 = 666.

The first beast of Revelations 13 is an empire which had seven heads that persecuted God's people. First was Egypt where they were slaves to the pharaohs, second Assyria captured the 10 tribes of northern Israel, third Babylon captured the two remaining tribes of Judah, fourth Medo-Persia, fifth Greece (five are fallen, in John's time, and one is) sixth Rome destroyed the temple, seventh the papacy with the pope ruling from the fall of Rome until the deadly wound of 1798 when Napoleon captured the pope and confiscated all the papal lands. Italy's Benito Mussolini healed the wound, restoring the Vatican City by the Lateran Treaty in 1929. The seventh, restored, became the eighth.

In 1776 a country rose to power on another continent, creating a religious system derived from the Protestant daughters of the great whore, keeping the traditions of man above the commandments of God, trading Passover for Easter, Sabbath worship for "sun"day worship, etc. These were sanctified by the pope, not by the apostles; they are not mentioned in the Bible. Receive the mark of the beast by obeying the pope's laws while disobeying God's laws.

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Math and Arithmetic
Numbers

How do you write 16 042 631 in words?

One Crore sixty lakhs forty two thousand six hundred thirty one.

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Prime Numbers
Numbers

Prime numbers up to 200?

2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 103 107 109 113 127 131 137 139 149 151 157 163 167 173 179 181 191 193 197 199

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Algebra
Numbers
Percentages, Fractions, and Decimal Values

What is the fraction 8 over 25 as a percent?

To convert a fraction to a percent, you first divide the numerator by the denominator. And then multiply by 100, which moves your decimal point two places to the right.

Another way to do it, or check your answer, is to make the fraction equivalent to a denominator of 100. So if you were to convert 8/25 to X/100, your new numerator would be the percentage.

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Math and Arithmetic
Numbers

What two numbers squared equal a perfect square?

32+42=52

9+16=25

You can keep this pattern going, too:

3² + 4² = 5²

6² + 8² = 10²

9² + 12² = 15²

12² + 16² = 20²

And so on and so forth...

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Math and Arithmetic
Numbers

Is 0.2 with a horizontal line over it greater than 0.2 without the line?

Yes, the bar over the 2, means that the digit (or digits) are repeated forever.

so 0.2 (with bar over 2) = 0.2222222222..... is decimal for 2/9 (fraction)

and 0.2 (no bar) = 0.200000000 which is 2/10

you could look at it a few ways.

0.2222222.... = 0.2 + 0.0222222.... which is greater than 0.2

or compare 2/9 & 2/10, 2/9 = 20/90 & 2/10 = 18/90

with the same denominator 20 > 18, so 2/9 > 2/10

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Math and Arithmetic
Numbers

What is 31 over 7 as a mixed number?

31/7 = 4r3r7 number is 4.428571429

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