F(x)=-3/5x+k and if f(30)=-11 what is the value of k

Mathematics

1 answer:

Kruka [31]3 years ago

6 0

Answer:

k=20.

Explanation: First we find where f(x) has its local extrema: f'(x)=3x2−10x+3. The critical points are roots of the equation: 3x2−10x+3=0.

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Step-by-step explanation:

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kvv77 [185]

The answer is 42.

The question is asking for angle N. We know from the question that angle N is equal to angle E (Don't think about the scale factor because it only applies to the sides. They're just trying to trick you).

To find angle E:
$79 + 6x + 11 + 7x - 14 = 180$
Move numbers to the right side:
$6x + 7x = 180 - 79 - 11 + 14$
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Plug in the 8:
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To solidify, we can try to use the formula which they give us for angle N:
$3x + 18 = 24 + 18 = 42$

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