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[6] [7] [8] Quizlet's blog, written mostly by Andrew in the earlier days of the company, claims it had reached 50,000 registered users in 252 days online. [9] In the following two years, Quizlet reached its 1,000,000th registered user. [10] Until 2011, Quizlet shared staff and financial resources with the Collectors Weekly website. [11]
In this notation, powers of ten are expressed as 10 with a numeric superscript, e.g. "The X-ray emission of the radio galaxy is 1.3 × 10 45 joules." When a number such as 10 45 needs to be referred to in words, it is simply read out as "ten to the forty-fifth" or "ten to the forty-five". This is easier to say and less ambiguous than ...
1000 million Mark Notgeld banknote (1923) of Frankfurt am Main. According to the Oxford English Dictionary, the word billion was formed in the 16th century (from million and the prefix bi-, "two"), meaning the second power of a million (1,000,000 2 = 10 12). This long scale definition was similarly applied to trillion, quadrillion and so on ...
Unlike cardinal numbers these can be pluralized, in which case they require of before the noun (millions of dollars, but five million dollars) and require the indefinite article "a" in the singular (a million letters (indefinite) but one million letters (definite)). In French, 36 and 36,000 are occasionally used as a synonym for "very many".
In general, if an increase of x percent is followed by a decrease of x percent, and the initial amount was p, the final amount is p (1 + 0.01 x)(1 − 0.01 x) = p (1 − (0.01 x) 2); hence the net change is an overall decrease by x percent of x percent (the square of the original percent change when expressed as a decimal number).
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To put in perspective the size of a googol, the mass of an electron, just under 10-30 kg, can be compared to the mass of the visible universe, estimated at between 10 50 and 10 60 kg. [5] It is a ratio in the order of about 10 80 to 10 90 , or at most one ten-billionth of a googol (0.00000001% of a googol).
For example, you may write $100.30 if you wish to write a check for one hundred dollars and thirty cents. Make sure you write this clearly so that the bank can subtract the correct amount from ...