3 years ago

What is 42% of 120ml?

Mathematics

1 answer:

SVEN [57.7K]3 years ago

5 0

Answer:

50.4

Step-by-step explanation:

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An aircraft factory manufactures airplane engines. The unit cost C (the cost in dollars to make each airplane engine) depends on

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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

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

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

Where

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

C(x)=x²-180x+20,482

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

How many engines must be made to minimize the unit cost?

x value of the vertex. So

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

90 engines must be made to minimize the unit cost.

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Slope(m) = -2 hope this helps

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