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For example, 1 kilometre is 10 3 (one thousand) times the length of 1 metre, but 1 square kilometre is (10 3) 2 (10 6, one million) times the area of 1 square metre, and 1 cubic kilometre is (10 3) 3 (10 9, one billion) cubic metres.
Legendre symbol: If p is an odd prime number and a is an integer, the value of () is 1 if a is a quadratic residue modulo p; it is –1 if a is a quadratic non-residue modulo p; it is 0 if p divides a.
Similarly, if the final digit on the right of the decimal mark is zero—that is, if b n = 0 —it may be removed; conversely, trailing zeros may be added after the decimal mark without changing the represented number; [note 1] for example, 15 = 15.0 = 15.00 and 5.2 = 5.20 = 5.200.
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K, with a half-life of 1.25 × 10 9 years, decays to stable 40 Ar (11.2%) by electron capture or positron emission, and also to stable 40 Ca (88.8%) by beta decay. These properties and ratios are used to determine the age of rocks by K–Ar dating. [25] [26] In Earth's atmosphere, 39 Ar is made by cosmic ray activity, primarily by neutron ...
WASHINGTON (Reuters) -The Justice Department late on Wednesday asked a U.S. appeals court to reject an emergency bid by TikTok to temporarily block a law that would require its Chinese parent ...
ESPN and Stephen A. Smith are close to hammering out a new contract that will give the popular Disney sports personality potential access to other parts of the Magic Kingdom.
The 1,000th Wordle puzzle ran in March, a milestone for the popular game where players tend to stick to a formula, with 2.8 million people using the same starting word every day as proof.