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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.
46,867 Questions
Proper fraction: 40 x ¾
Improper fraction: 20 x 1½
Is a number that is raised to a negative number negative?
No. A negative power simply indicates a reciprocal of the positive power.
So 3-4 = 1/34 = 1/81
while
(-2)-5 = 1/(-2)5 = 1/(-32) = -1/32
Can someone explain the golden ratio simply?
The Golden Ratio is a number, roughly 1.61803.....
-- The number was historically considered to be the ratio of the length to width
of a rectangle that's most pleasing to the eye, and it shows up all over the place
in ancient Greek architecture.
-- It's the solution to the equation [ x - 1 = 1/x ] . . . the number that's 1 more
than its reciprocal.
That works out to 1/2 of [ 1 + sqrt(5) ]
-- As you list more and more terms of the Fibonacci Series, the ratio of each term
to the one before it heads for that number.
How are irrational numbers different from other numbers?
A rational number can be expressed as a fraction, with whole numbers in the numerator and the denominator, for example 2/3, -3/4, or 5 (which is equal to 5/1).
An irrational number can not be expressed as such a fraction. For example, the square root of 2, the square root of any positive integer that is not a perfect square, pi, the number e.
What is the number between 1 and 0?
There are infinite numbers that are between the 1 and 0 these are some of the numbers: 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0.10
What can be a non rational number?
It can be a real number which is not a rational number. That is, an irrational number such as sqrt(2), or cuberoot(5), or pi, or e, or phi. Or it can be a number that is not even a real number, such as a complex number or a quaternion.
What is the fraction 5 2nds in whole number and fraction form?
Five 2nds is the same amount as 5/2 and also the same amount as 2.5 and 21/2 .
It's not the same as any whole number.
What are 3 numbers that are composite numbers and are relatively prime numbers?
Type your answer here... -1,0 and 1
What is the least two-digit even number?
The first 2 digit integer is 10. This is an even number and is therefore the answer.
Does the number 3 go into the number 125?
Not evenly. It can go in 41 times, but after that there's only room
for 2 more, so there is no way to cram the whole 3 in there again.
77 to make 7777. And that is seven thousand seven hundred seventy seven.
What is true about the product of an odd and an even number?
An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. Odd times even will be odd.
How much money makes a million dollars?
A million is one thousand times a thousand.
1,000,000 = 1000 x 1000 = 10^6
What are the prime numbers from 1000- 1200?
1009 1013 1019 1021 1031 1033 1039 1049 1051 1061 1063 1069 1087 1091 1093 1097 1103 1109 1117 1123 1129 1151 1153 1163 1171 1181 1187 1193.
1,2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,87,89,91,97, whew.... you can continue.
