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kiruha [24]
3 years ago
9

F(-2)=3(-2)^5-(-2)^3+6(-2)^2-(-2)+1

Mathematics
1 answer:
Triss [41]3 years ago
3 0

Answer:

F(-2) \\ =3(-2)^5-(-2)^3+6(-2)^2-(-2)+1 \\  = 3( - 32) + 8 + 24 + 2 + 1 \\   = ( - 92) + 35 \\  =  - 61

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Answer:

B is the best answer

The question is illustrated with the attached figure.

Required

Determine XY

To solve for XY, we make use of the tan function, which states that:

tan\theta = \frac{Opposite}{Hypotenuse}tanθ=

Hypotenuse

Opposite

In this case:

tan\ 60= \frac{YZ}{XY}tan 60=

XY

YZ

Substitute 4 for YZ

tan\ 60= \frac{4}{XY}tan 60=

XY

4

Make XY the subject

XY= \frac{4}{tan\ 60}XY=

tan 60

4

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3

So, the expression becomes:

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Rationalize:

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∗

3

4∗

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XY = \frac{4\sqrt 3}{3}XY=

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4

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