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Irina-Kira [14]
3 years ago
9

Subtract the two expressions. 2b + 4 from -8b - 12

Mathematics
2 answers:
Sedbober [7]3 years ago
4 0
(2b+4)-(-8b-12) = 10b - 8
Artyom0805 [142]3 years ago
3 0
<span>=<span><span><span><span>2b</span>+4</span>+<span>8b</span></span>+12</span></span>Combine Like Terms:<span>=<span><span><span><span>2b</span>+4</span>+<span>8b</span></span>+12</span></span><span>=<span><span>(<span><span>2b</span>+<span>8b</span></span>)</span>+<span>(<span>4+12</span>)</span></span></span><span>=<span><span>10b</span>+16</span></span>Answer:<span>=<span><span>10b</span>+16</span></span>
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nata0808 [166]

Answer:

503

Step-by-step explanation:

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d = 299 - 305 \\d = -6 \\

The common difference must be the same throughout the entire sequence, so we can do it once more just to be sure:

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\displaystyle\lim_{n\to\infty}\frac1n\sum_{i=1}^n\left(\frac in\right)^3=\lim_{n\to\infty}\frac{n^2(n+1)^2}{4n^3}=\boxed{\frac14}

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