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borishaifa [10]
3 years ago
8

F(n)=n^2+2n find f(-6)

Mathematics
1 answer:
Savatey [412]3 years ago
7 0
F(-6) = (-6)2 + 2(-6)
= -12 - 12
= -24
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Lana71 [14]

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Answer:

  • x = 8
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Step-by-step explanation:

Using the given information, we have ...

  BH = 2·HF

  3x +6 = 2(2x -1)

  3x +6 = 4x -2

  8 = x

__

The length of the median is ...

  BF = BH + HF

  BF = (3x +6) +(2x -1) = 5x +5

  BF = 5·8 +5

  BF = 45

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