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hoa [83]
3 years ago
11

PLEASE ANSWER FAST ! NO SCAM LINKS OR REPORTED.

Mathematics
1 answer:
xenn [34]3 years ago
5 0

Answer:

A the graph represents a linear function because

Step-by-step explanation:

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2

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The present ages f Nick and David are in the ratio 5:7. After four years the ratio of their ages will be 3: 4 . find their prese
GrogVix [38]

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Step-by-step explanation:

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3 years ago
A certain electronics manufacturer found that the average cost C C to produce x DVD/Blu- ray players can be found using the equa
Kisachek [45]

Answer:

83,491.67 dollars

Step-by-step explanation:

Given that a certain electronics manufacturer ound that the average cost C C to produce x DVD/Blu- ray players can be found using the equation  C=0.03x^2-5x+700

To find the minimum average cost per machine we can use derivative test.

we find first and second derivative.

If for a particular value of x first derivative is 0 and second derivative is positive, then that x satisfies the minimum cost criteria.

C=0.03x^2-5x+700\\C'(x) = 0.06x-5\\C"(x) = 0.06>0

Second derivative is always positive

I derivative =0 gives

x=5/0.06 \\=83.33\\~83

For 83 players the cost would be minimum

Minimum cost = 0.03(83)^2-5(83)+700\\=491.67

3 0
3 years ago
Which is the best unit for measuring the weight of an elephant?
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Which is the best unit for measuring the weight of an elephant?


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Find x<br> Solve the simultaneous equations<br> 3x + 2y = 27<br> 3x – y=9
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Answer:

I think it is this because it seems as if It is 2 separate equations.

a.x=9-2y/3

b.x=3+y/3

8 0
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