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solong [7]
3 years ago
10

Which set of ordered pairs represents a function?

Mathematics
2 answers:
Georgia [21]3 years ago
6 0

Answer:

the second one

Step-by-step explanation:

in order for it to be a function the x values CANNOT repeat.

in answer a the x value -6 repeats so that cannot be a function

in answer b none of the x values repeat so its probably this one but lets check the other ones just in case

in answer c the x value 8 repeats so it cannot be this one

in answer d the x value -2 repeats so it cant be this one \

b is the only one that does have repeating x values therefore it is the second one

Damm [24]3 years ago
3 0
B is the answer hope i helped
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Answer:

log(base 3)(d/12) = log(base 3)d - log(base 3)12

Step-by-step explanation:

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EleoNora [17]
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find three consecutive negative integers such that six times the largest is equal to the twice sum of the two smaller integers.
NISA [10]

The three consecutive negative integers are -5 , -4 , -3

Step-by-step explanation:

Consecutive numbers are numbers that follow each other in order.

They have a difference of 1 between every two numbers

Examples:

  • 2 , 3 , 4, .......
  • -5 , -4 , -3 , .......
  • n , n + 1 , n + 2 , ........

Assume that the smallest negative number is -n

∵ There are three negative consecutive numbers

∵ The smallest one = -n

∴ The three numbers are (-n) , (-n + 1) , (-n + 2)

∵ The largest number is (-n + 2)

∵ Six times the largest is equal to the twice sum of the two smaller

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- Multiply (-n + 2) by 6 and multiply the the sum of (-n) and (-n + 1) by 2

∴ 6(-n + 2) = 2[(-n) + (-n + 1)]

- Simplify the equation

∵ 6(-n) + 6(2) = 2[-2n + 1]

∴ -6n + 12 = 2(-2n) + 2(1)

∴ -6n + 12 = -4n + 2

- Subtract 12 from both sides

∴ -6n = -4n - 10

- Add 4n to both sides

∴ -2n = -10

- Divide both sides by -2

∴ n = 5

∵ The numbers are (-n) , (-n + 1) , (-n + 2)

∴ The numbers are (-5) , (-5 + 1) , (-5 + 2)

∴ The numbers are (-5) , (-4) , (-3)

The three consecutive negative integers are -5 , -4 , -3

Learn more:

You can learn more about consecutive numbers in brainly.com/question/5496711

#LearnwithBrainly

3 0
3 years ago
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25 and 480

Step-by-step explanation:

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Coliform bacteria are randomly distributed in a river at an average concentration of 1 per 20cc of water. What is the variance o
Yakvenalex [24]

Answer:

Var = 1.9

Step-by-step explanation:

Given

p = \frac{1}{20}  i.e. 1 per 20cc of water

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Required

The variance

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Var = np(1 - p)

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