2 years ago

15x(6)-25x(5)+3x(4)-40x(3)/-5x(3)

Mathematics

1 answer:

vodka [1.7K]2 years ago

6 0

Answer:

I believe the answer is (-151).

Step-by-step explanation:

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strojnjashka [21]

Answer:

The 1st term is -67

Step-by-step explanation:

I. When Sn = $\frac{n}{2}$ ( $a_{1} + a_{n}$ )

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124 = 4a + 392

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2 years ago

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Answer:

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Step-by-step explanation:

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