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List coloring. In graph theory, a branch of mathematics, list coloring is a type of graph coloring where each vertex can be restricted to a list of allowed colors. It was first studied in the 1970s in independent papers by Vizing and by Erdős, Rubin, and Taylor. [1]
Pennsylvania (/ ˌ p ɛ n s ɪ l ˈ v eɪ n i ə / ⓘ PEN-sil-VAY-nee-ə, lit. ' Penn's forest country '), officially the Commonwealth of Pennsylvania [b] (Pennsylvania Dutch: Pennsylvanie), [7] is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States.
[5] Believed to be the first coupon ever, this ticket for a free glass of Coca-Cola was first distributed in 1888 to help promote the drink. By 1913, the company had redeemed 8.5 million tickets. [6] Coca-Cola's 1888-issued "free glass of" is the earliest documented coupon. [6] [7] Coupons were mailed to potential customers and placed in ...
[25] 84% of residents 25 or older hold a high school degree, the lowest high school education rate of all 50 states. [26] Despite a continuing exodus of businesses from Downtown San Francisco [ 27 ] [ 28 ] and Downtown Los Angeles , [ 29 ] California retains one of the largest number of Fortune 500 companies.
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Description. 2024 United States presidential election (Trump-Harris) polling.svg. English: A LOESS graph of the polling between the 2020 and 2024 United States presidential elections between Harris and Trump. The 'Others' and 'Undecided' groups have been calculated out. Smoothing is set to 0.5. This graph will be updated at least weekly, but I ...
.coupon: discounts and rebates: Amazon Registry Services, Inc. [11] Yes .coupons: Coupon pages, coupon sites, discount sites, coupon-themed blogs, bargain hunters — Identity Digital: Yes: Yes .courses: education: Open Universities Australia Pty Ltd [11] Yes .cpa: accountants and accounting firms: Restricted to licensed CPAs and CPA firms
Illinois ranks second in U.S. corn production with more than 1.5 billion bushels produced annually. [155] With a production capacity of 1.5 billion gallons per year, Illinois is a top producer of ethanol, ranking third in the United States in 2011. [156] Illinois is a leader in food manufacturing and meat processing. [157]