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diamong [38]
3 years ago
7

Please help I will mark brainliest thanks​

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
6 0

Answer:

5+4+6=51 yes

Step-by-step explanation:

Darina [25.2K]3 years ago
4 0

Answer:

0

Step-by-step explanation:

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Evaluate arithmetic series:-<br><br> Step-by-step answer, please!
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Let's see

\\ \rm\Rrightarrow {\displaystyle{\sum^{275}_{k=1}}}(-5k+12)

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So

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\\ \rm\Rrightarrow S_n=\dfrac{n}{2}[a+l]

\\ \rm\Rrightarrow \dfrac{275}{2}(7-1363)

\\ \rm\Rrightarrow \dfrac{275}{2}(-1356)

\\ \rm\Rrightarrow 275(-678)

\\ \rm\Rrightarrow -186450

4 0
2 years ago
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How many solutions does the equation 3x-10(x+2)=13-7x
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Answer:

No solution

Step-by-step explanation:

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2. Collect like terms

3. Cancel equal terms

4. You're left with -20=13, which is false. There is no solution.

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