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tensa zangetsu [6.8K]
3 years ago
6

What is ∑n=17(10n+90) equal to? Enter your answer in the box.

Mathematics
1 answer:
Illusion [34]3 years ago
6 0

Answer:

910

Step-by-step explanation:

\sum_{n=1}^{7}(10n+90)\\\\=\sum_{n=1}^{7}(10n)+\sum_{n=1}^{7}(90)\\\\=10\sum_{n=1}^{7}(n)+90(7)\\\\=10(\frac{7(7+1)}{2})+630\\\\=10(28)+630\\\\=280+630\\\\=910<u />

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3 years ago
Tomas factored the polynomial completely. What is true about his final product? 3x4−18x3+9x2−54x Ax(x2+B)(x+C)
iren2701 [21]

Answer:

A and B are both 3.  

Step-by-step explanation:

The given polynomial is 3x^4-18x^3+9x^2-54x.

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8 0
3 years ago
Read 2 more answers
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Sati [7]
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5 0
3 years ago
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Answer:

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Step-by-step explanation:

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