Mathematics, 03.08.2021 04:20, gemouljr
Lizzie came up with a divisibility test for a certain number $m \neq 1$:
Break a positive integer $n$ into two-digit chunks, starting from the ones place. (For example, the number $354764$ would break into the two-digit chunks $64, 47, 35.$)
Find the alternating sum of these two-digit numbers, by adding the first number, subtracting the second, adding the third, and so on. (In our example, this alternating sum would be $64-47+35=52.$)
Find $m,$ and show that this is indeed a divisibility test for $m$ (by showing that $n$ is divisible by $m$ if and only if the result of this process is divisible by $m$).
Answers: 2
Mathematics, 21.06.2019 18:00, NeonPlaySword
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Consider the following equation. 1/2x^3+x-7=-3sqrtx-1 approximate the solution to the equation using three iterations of successive approximation. use the graph below as a starting point. a. b. c. d.
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Answers: 1
Lizzie came up with a divisibility test for a certain number $m \neq 1$:
Break a positive integer $...
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