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NARA [144]
2 years ago
10

Identify the recursive formula for the sequence -3, 9, -27, 81, ....

Mathematics
1 answer:
OLEGan [10]2 years ago
6 0

Answer:

A

Step-by-step explanation:

there is a common ratio between consecutive terms , that is

9 ÷ - 3 = - 27 ÷ 9 = 81 ÷ - 27 = - 3

this indicates the sequence is geometric.

the recursive formula allows a term in the sequence to be found by multiplying the previous term by the common ratio r , that is

f(n) = - 3f(n - 1) if n > 1 : f(1) = - 3

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2 years ago
Amira is told there is a trick to finding the slope within an equation in standard form, Ax+By=C. She is told she can rewrite th
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Answer:

B. In slope-intercept form, the slope is − 7/9. These values are A and B, but with the opposite sign, so the slope of the line from the equation in standard form is − A/B.

Step-by-step explanation:

<u>Let's convert the standard equation into slope-intercept form:</u>

  • Ax + By = C              ⇒ subtract Ax from both sides
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As we see the slope is -A/B

<u>The equation 7x + 9y = 14 is converted as:</u>

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4 0
3 years ago
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12345 [234]

Answer:

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7 0
3 years ago
Read 2 more answers
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