3 years ago

Indicate a general rule for the nth term of this sequence. -6b, -3b, 0b, 3b, 6b. . .

Mathematics

1 answer:

GREYUIT [131]3 years ago

4 0

Answer:

a(n) = -16b + (n - 1)(3b)

Step-by-step explanation:

First term is -6b.

Common difference is 3b; each new term is equal to the previous one, plus 3b.

Formula for this arithmetic sequence is

a(n) = -16b + (n - 1)(3b)

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3 years ago

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Vika [28.1K]

The formula:
A = bh + L (s1 + s2 + s3)

A: area
b: base
h: height
L: length
s1: side 1 (cross-sectional area)
s2: side 2 (cross-sectional area)
s3: side 3 (cross-sectional area)

Here’s an example (see attached image)

A = (4 x 6) + (12 x [7 + 7 + 4])
A = (24) + (12 x 18)
A = 24 + 216
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I hope this helped? Comment if you need more explanation or anything!