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noname [10]
3 years ago
10

The constraints of a problem are listed below. What are the vertices of the feasible region?

Mathematics
2 answers:
Grace [21]3 years ago
8 0
The vertices are the intersections between the lines.

1) line x + y = 5 and y = 3:

y = 3 => x + 3 = 5 => x = 5 - 3 => x = 2

=> vertix = (2,3)

2) line x + y = 5 and y = 0

=> y = 0 => x + 0 = 5 => x = 5

=> vertix = (5,0)

3) line x + y = 5 and x = 0

=> 0 + y = 5 => y = 5

=>  (0,5) ------> this is not a vertix because it is above the line y = 3

4) line y = 3 and x-axis

=> vertix = (0,3)

5) x-axis and y-axis => origin => vertix = (0,0)

So, there are four vertices: (0,0), (5,0), (2,3) and (0,3)

Answer: That is the first option:(<span>0, 0), (0, 3), (2, 3), (5, 0)</span>
Tems11 [23]3 years ago
4 0

Answer:

Option A is correct .i.e., ( 0, 0 ) , ( 0, 3) , ( 2, 3 ) & ( 5, 0)

Step-by-step explanation:

Given constraints are

x + y ≤ 5  ,  y ≤ 3  ,  x ≥ 0  &  y ≥ 0

To find Vertex of Feasible region we find point of intersection of lines.

To find Point of intersection we replace sign of inequality with equality.

So,

Point of intersection of  x + y = 5  ,  y = 3

put y = 3 in another equation, we get

x + 3 = 5

⇒ x = 5 - 3

⇒ x = 2

⇒ Point of intersection or vertex = ( 2 , 3 )

 

Point of intersection of  y = 3  ,  x = 0

⇒ Point of intersection or vertex = ( 0 , 3 )

Point of intersection of  x + y = 5  ,  y = 0

put y = 0 in another equation, we get

x + 0 = 5

⇒ x = 5  

⇒ Point of intersection or vertex = ( 5 , 0 )

Point of intersection of  x = 0  ,  y = 0

⇒ Point of intersection or vertex = ( 0 , 0 )

Point of intersection of  x + y = 5  ,  x = 0

put x = 0 in another equation, we get

0 + y = 5

⇒ y = 5  

⇒ Point of intersection = ( 0 , 5 ) but this is not required vertex as it lie on the above of y = 3

Therefore, Option A is correct .i.e., ( 0, 0 ) , ( 0, 3) , ( 2, 3 ) & ( 5, 0)

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The perpendicular line will have an equation of y=3/4x-3/4

To find this, we first have to solve our equation for slope intercept form.

8x + 6y = -5 ----> subtract 8x

6y = -8x + -5 ----> divide by 6

y = -4/3x - 5/6.

So we know the slope of this equation to be -4/3. Since perpendicular lines have opposite and reciprocal slopes, we know we can simply flip the fraction and make it a negative to get the new slope of 3/4. Since B is the only option with that slope, we know it to be the correct answer.

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Step-by-step explanation:

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Which of the following points is a solution to the system of linear inequalities?
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2 years ago
A card is drawn at random from a deck of 52 playing cards. Find the probability that the card drawn is:
melomori [17]

probability that the card drawn is:

  1. an ace or a king  = 0.1538
  2. a king or a diamond = 0.3269

<u>Step-by-step explanation:</u>

Here we have , A card is drawn at random from a deck of 52 playing cards. We need to find that Find the probability that the card drawn is:

  • an ace or a king

A deck of standard 52 cards contain four aces. There are four kings in a standard deck of playing cards. So ,we need to find probability that card drawn is either a ace or king i.e.

probability = \frac{Number-of-(ace+king)-cards}{total-number-of-cards}

⇒ probability = \frac{Number-of-(ace+king)-cards}{total-number-of-cards}

⇒ probability = \frac{8}{52}

⇒ probability = 0.1538

  • a king or a diamond

A deck of standard 52 cards contain four kings. There are 13 Diamonds in a standard deck of playing cards. So ,we need to find probability that card drawn is either a ace or king i.e.

probability = \frac{Number-of-(ace+king)-cards}{total-number-of-cards}

⇒ probability = \frac{Number-of-(ace+king)-cards}{total-number-of-cards}

⇒ probability = \frac{(13+4=17)}{52}

⇒ probability = \frac{(17)}{52}

⇒ probability =0.3269

Therefore, probability that the card drawn is:

  1. an ace or a king  = 0.1538
  2. a king or a diamond = 0.3269
8 0
3 years ago
Read 2 more answers
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