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sergiy2304 [10]
3 years ago
9

Ryan and Curtis are randomly drawing tiles from a bag containing 26 tiles, each labeled with a different letter of the alphabet.

Mathematics
1 answer:
Pavel [41]3 years ago
4 0

Answer:

dependent, less than

Step-by-step explanation:

took plato test

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If the sum of the even integers between 1 and k, inclusive, is equal to 2k, what is the value of k?
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If k is odd, then

\displaystyle\sum_{n=1}^{\lfloor k/2\rfloor}2n=2\dfrac{\left\lfloor\frac k2\right\rfloor\left(\left\lfloor\frac k2\right\rfloor+1\right)}2=\left\lfloor\dfrac k2\right\rfloor^2+\left\lfloor\dfrac k2\right\rfloor

while if k is even, then the sum would be

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In the odd case, instead of considering the above equation we can consider the partial sums. If k is odd, then the sum of the even integers between 1 and k would be

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Now consider the partial sum up to the second-to-last term,

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Subtracting this from the previous partial sum, we have

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