(this one is just for fun) a number is divisible by 3 if the sum of its digits is divisible by 3 a number is divisible by 6 is the sum of its digits is divisible by 3, and the number is even. a number is divisible by 9 if the sum of its digits is divisible by 9. a number is divisible by 11 if the alternating sum of its digits is divisible by a multiple of 11 (so divisible by 0, 11, 22, 33, etc - don't forget the zero, that is also a multiple of 11). for example, the number 2354 is divisible by 11 since 2-3+5-4=0. the number 9680 is divisible by 11 since 9-6+8-0=11 c given that information for what values of a and b is the number 12ab divisible by 99?
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What happens to atoms and chemical bonds during a reaction?
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Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.
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(this one is just for fun) a number is divisible by 3 if the sum of its digits is divisible by 3 a n...
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