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Komok [63]
3 years ago
15

Plz help asap i meean asap plzz

Mathematics
2 answers:
adoni [48]3 years ago
7 0

Answer:

1. 4.374    2. 52.64   3.  840.5

Step-by-step explanation:

calculatd

aleksandrvk [35]3 years ago
6 0
1. 4.374
2. 52.64
3. 840.5
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Answer:

90 engines must be made to minimize the unit cost.

Step-by-step explanation:

Vertex of a quadratic function:

Suppose we have a quadratic function in the following format:

f(x) = ax^{2} + bx + c

It's vertex is the point (x_{v}, y_{v})

In which

x_{v} = -\frac{b}{2a}

y_{v} = -\frac{\Delta}{4a}

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If a>0, the minimum value of the function will happen for x = x_v

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This means that a = 1, b = -180, c = 20482

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x_{v} = -\frac{b}{2a} = -\frac{-180}{2(1)} = 90

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Attached is the solution.
The following log properties are used:
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