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Math
What is the inverse of 987x=1 (mod 11)? What I've done so far is: GCD(987, 11) 987 = 89 * 11 + 8 GCD(11, 8) 11 = 1 * 8 + 3 GCD(8,3) 8 = 2 * 3 + 2 GCD(3,2) 3 = 1 * 2 + 1 ...So basically, the GCD(987, 11) is 1. So... 1 = 3  2 = 3 
asked by Nora on March 24, 2015 
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what equation will equal 12,345,678,987,654,321
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A thermometer reading 7 degrees C is brought into a room with a constant temperature of 29 degrees C. If the thermometer reads 15 degrees C after 4 minutes, what will it read in 6 minutes? 11 minutes? So I guess I need to put into
asked by Sushmitha on October 29, 2011 
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20. Find the product of 987.2365 and 1,000. A. .9872365 B. .09872365 C. 987,236.5 D. 9,872,365 Ohh now I see it is C
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Convert → 678,000 cm = ____ km. Choose the best answer from the options below: A 5.78 km B 6.78 km C 67.8 km D 678 km
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Convert → 678,000 cm = ____ km. Choose the best answer from the options below: A 5.78 km B 6.78 km C 67.8 km D 678 km
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Round 0.8394263 to the nearest hunderdthousandth. Is this correct 0.83943 Round the number 43,678.426785 to the nearest ten thousand. Is this correct 43,678.4268
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Chemistry
Methane burns with oxygen to produce carbon dioxide and water as a gas. The balanced thermochemical equation is Ch4(g) + 2)2(g) > CO2(g) + 2H2O(g) H = 802kJ How much methane, in grams, must be burned to release 544 kJ of heat?
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I am going to list some decimals. Then I need to know if the order is correct from least to greatest. .55 , .678 , .434 and .8 Is the correct order: .434 , .550 , .678 , .8
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Round the number 43,678.426785 to the nearest ten thousand 40,000 or 50,000. 43,678 is less than half way to 50,000 so 40,000 is to the nearest 10,000.
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