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Yuki888 [10]
3 years ago
15

El doble de un número más de 3 unidades

Mathematics
1 answer:
Lerok [7]3 years ago
5 0

Lá resposta de el pergutala é 2x+3

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2 × (5 + 5)<br><br> Which of the following describes (5 + 5) in the expression above?
Basile [38]

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20

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Experimental probability is based on doing trials.</span>
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Help me with this question
TEA [102]

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the second one

Step-by-step explanation:

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A manufacturer has been selling 1400 television sets a week at $450 each. A market survey indicates that for each $21 rebate off
GuDViN [60]

Correct question is;

A manufacturer has been selling 1400 television sets a week at $450 each. A market survey indicates that for each $21 rebate offered to a buyer, the number of sets sold will increase by 210 per week

A) Find the demand function (price p as a function of units sold x).

p(x)=______

(B) How large a rebate should the company offer the buyer in order to maximize its revenue?

$=_____

Answer:

A) p(x) = (-1/10)x + 590

B) Rebate = $170

Step-by-step explanation:

A) We are told that p(x) is the demand function and x is the number of TV sets sold per week.

Now, since for each $21 rebate offered, the number of sets sold increases by 210 per week, it means that the slope here of this demand function is; m = -21/210 = -1/10

Now, he has been selling 1400 TV sets a week at $450 each. This means; p(1400) = $450

Thus, the demand function will be;

p(x) - 450 = (-1/10)(x - 1400)

Expanding the RHS;

p(x) - 450 = (-1/10)x + 140

Add 450 to both sides to get;

p(x) = (-1/10)x + 140 + 450

p(x) = (-1/10)x + 590

B) Formula for revenue is;

R = price × quantity sold

Our demand function is p = (-1/10)x + 590

Making x the subject, we have;

x = 5900 - 10p

x is quantity sold.

Thus,

R = p(5900 - 10p)

R = 5900p - 10p²

Maximum price will occur at dR/dP = 0

Thus;

dR/dP = 5900 - 20p

At dR/dP = 0,we have;

20p = 5900

p = 5900/20

p = $280

Thus, rebate = 450 - 280 = $170

6 0
2 years ago
What is the length of chord An in Oo below?
Anika [276]

Answer:

12 units

Step-by-step explanation:

In\: \odot O,

  • chords \overline{ML} and \overline{AN} are equidistant (7.2 units) from the center of the circle O.
  • Measures of the chords equidistant from the center of the circle are equal.
  • \therefore m(chord\:\overline{AN}) =m(chord\:\overline{ML})
  • \because m(chord\:\overline{ML}) = 12\: units
  • \therefore m(chord\:\overline{AN}) = 12\: units
4 0
3 years ago
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