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2 years ago

Which of the following relations is a function?

Mathematics

2 answers:

Anon25 [30]2 years ago

6 0

Answer:

D.(5,1),(-5,4),(2,1),(5,2)

tino4ka555 [31]2 years ago

4 0

It is D.!!!!!!!!!!!!!!!!!

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4. What is the solution to the equation below? 1/3x + 6 = 9

olganol [36]

Answer:

x = 9

Step-by-step explanation:

$\dfrac{1}{3}x + 6 = 9$

Subtract 6 from both sides.

$\dfrac{1}{3}x = 3$

Multiply both sides by 3.

$3 \times \dfrac{1}{3}x = 3 \times 3$

$x = 9$

Answer: x = 9

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2 years ago

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5. Which expression is a factor of x2 -5x - 6? A B x - 6 x-2 c x-3 1

noname [10]

Answer:

The answer is B

Step-by-step explanation:

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2 years ago

Amalie wants to know if students in her class prefer hot dogs or hamburgers. Why should Amalie survey the entire population rath

Digiron [165]

The correct answer would be that it would be more reliable to survey everyone instead of a few because it would only be conformative to those surveyed people’s taste.

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3 years ago

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A bag contains some number of marbles. It is known that 20 of them are red. When 15 marbles are drawn, without replacement, we g

Llana [10]

Answer:

The total number of marbles in the bag is 50.

Step-by-step explanation:

Here, we have n trials, without replacement. So the hypergeometric distribution is used.

The mean of the hypergeometric distribution is:

$E(X) = \frac{n*k}{N}$

In which n is the number of items in the sample, k is the number of items in the population that are classified a success and N is the size of the population.

15 marbles are drawn:

This means that $n = 15$