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Nataliya [291]
3 years ago
14

If f(x) = -8 - 5x, what is f(-4)

Mathematics
2 answers:
Mashcka [7]3 years ago
6 0

Answer:

f(- 4) = 12

Step-by-step explanation:

To evaluate f(- 4) substitute x = - 4 into f(x) , that is

f(- 4) = - 8 - 5(- 4) = - 8 + 20 = 12

bogdanovich [222]3 years ago
3 0

f(x)=-8-5x

\\ \rm\longmapsto f(-4)

  • Put -4 inplace of x

\\ \rm\longmapsto -8-5(-4)

\\ \rm\longmapsto -8+20

\\ \rm\longmapsto 12

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Answer:

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Step-by-step explanation:

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(b)

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(c)

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mars1129 [50]

Answer:

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Step-by-step explanation:

Going by the angle indicators, the ratios of corresponding sides of the similar triangles are ...

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_____

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<em>Comment on the figure</em>

The usual geometry here is that the outside legs (opposite the vertical angles) are parallel, meaning that the angle indicators are the correct marks. It is possible, but unusual, for the red hash marks to be correct and the angle indicators to be mismarked. The red hash marks seem tentatively drawn, so seem like they're more likely to be the incorrect marks.

7 0
3 years ago
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