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andrew-mc [135]
3 years ago
14

An animal food company must produce 200kg. Of a

Mathematics
1 answer:
Sati [7]3 years ago
3 0

Answer:

Minimum cost = 1200$

x_1 = 80~kg\\x_2 = 120~kg      

Step-by-step explanation:

We are given the following information in the question:

An animal food company must produce 200 kg

x_1 + x_2 = 200\\x_1 \geq 0\\x_2 \geq 0

No more than 80 kg Of first ingredient can be used and at

least 60 kg Of second ingredient must be used.

x_1 \leq 80\\x_2 \geq 60

Cost of ingredient x_1 = Rs 3 per kg

Cost of ingredient x_2 = Rs 8 per kg

Total cost = 3x_1 + 8x_2

We have to minimize this cost.

Then, we can write the following inequalities:

6x + 8y \geq 208\\x \geq 8\\y \geq 8\\

The corner points as evaluated from graph are: (0,200) and (80,120).

C(0,200) = 1600$

C(80,120) = 1200$

Hence, by corner point theorem, the minimum cost would be 1200$ when 80 kg of first ingredient is used and 120 kg of second ingredient.

The attached image shows the graph.

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Complete Question

Express the confidence interval 0.555 less than p less than  0.777 in the form Modifying above p with caret plus or minus Upper E.

Answer:

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Step-by-step explanation:

From the question we are told that

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Now looking at the values that make up  the up confidence interval we see that this is a symmetric  confidence interval(This because the interval covers 95%  of the area under the normal curve which mean that the probability of a value falling outside the interval is 0.05 which is divided into two , the first half on the left -tail and the second half on the right tail  as shown on the figure in the first uploaded image(reference - Yale University ) ) which means

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So the confidence interval can now be represented as

        \r p \pm  E  = 0.666 \pm  0.111

     

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