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vladimir2022 [97]
3 years ago
9

Witch set of orderd pairs contains only points that are on the graph of the function y=12-3x

Mathematics
1 answer:
anygoal [31]3 years ago
5 0
You can try then by plotting the points in. 
The answer is C

Make sure by plotting in the points, lets take (-5,27)
y = 12 -3(-5)
y = 12 + 15
y = 27
27 = 27
This is correct 

Lets try (-1,15)
y = 12 -3(-1)
y = 12 + 3 
y = 15 
15 = 15
This is correct 

Lets try (8,-12)
y = 12 -3(8)
y = 12 - 24 
y = -12 
-12 = -12
This is correct too. 

The correct ordered pairs are <span>C(-5,27),(-1,15),(8,-12)</span>
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Answer:

R'(20) = 2000

Step-by-step explanation:

We are given the following in the question:

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f(20)=13000

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f′(20)=−550

This means that increasing the selling price by 1 dollar per yards there is a decrease in fabric sales by 550.

We have to find R'(20)

Differentiating the above expression, we have,

R'(p) = \displaystyle\frac{d(R(p))}{dp} = \frac{d(pf(p))}{dp} = f(p) + pf'(p)

Putting the values, we get,

R'(p) = f(p) + pf'(p)\\\\R'(20) = f(20) + 20(f'(20))\\\\R'(20) = 13000 + 20(-550) = 2000

7 0
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Step-by-step explanation:

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7 0
3 years ago
Please solve this with work.
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Answer:

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The solution is x = 2.

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The graph shows the left side of the equation is equal to the right side for x=2.

7 0
2 years ago
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Mnenie [13.5K]

Answer:

<h2><u><em>144 cm²</em></u></h2>

Step-by-step explanation:

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