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IrinaK [193]
3 years ago
6

Does this table represent a function? Why or why not?

Mathematics
2 answers:
4vir4ik [10]3 years ago
8 0

Answer: D. Yes , because every x -value corresponds to exactly one y-value.

Step-by-step explanation:

  • A function is a special kind of relationship between two variables x and y where x represents input value and y represents output value such that each input has a one unique output.

In the given table , the first column represents Hours of training (input value (say x)) and second column represents Monthly pay (output value (say y)).

We can see that each input appears once .

Thus, the output value corresponds every input value is unique.

Hence, the table represents a function.

ivanzaharov [21]3 years ago
3 0
In order to be a function, every x-value must correspond to only one y-value.

Answer: D
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Suppose a certain computer virus can enter a system through an email or through a webpage. There is a 40% chance of receiving th
DedPeter [7]

Answer:

P = 0.42

Step-by-step explanation:

This probability problem can be solved by building a Venn like diagram for each probability.

I say that we have two sets:

-Set A, that is the probability of receiving this virus through the email.

-Set B, that is the probability of receiving it through the webpage.

The most important information in these kind of problems is the intersection. That is, that he virus enters the system simultaneously by both email and webpage with a probability of 0.17. It means that A \cap B = 0.17.

By email only

The problem states that there is a 40 chance of receiving it through the email. It means that we have the following equation:

A + (A \cap B) = 0.40

A + 0.17 = 0.40

A = 0.23

where A is the probability that the system receives the virus just through the email.

The problem states that there is a 40% chance of receiving it through the email. 23% just through email and 17% by both the email and the webpage.

By webpage only

There is a 35% chance of receiving it through the webpage. With this information, we have the following equation:

B + (A \cap B) = 0.35

B + 0.17 = 0.35

B = 0.18

where B is the probability that the system receives the virus just through the webpage.

The problem states that there is a 35% chance of receiving it through the webpage. 18% just through the webpage and 17% by both the email and the webpage.

What is the probability that the virus does not enter the system at all?

So, we have the following probabilities.

- The virus does not enter the system: P

- The virus enters the system just by email: 23% = 0.23

- The virus enters the system just by webpage: 18% = 0.18

- The virus enters the system both by email and by the webpage: 17% = 0.17.

The sum of the probabilities is 100% = 1. So:

P + 0.23 + 0.18 + 0.17 = 1

P = 1 - 0.58

P = 0.42

There is a probability of 42% that the virus does not enter the system at all.

5 0
3 years ago
- Two cars leave the same parking lot, with one heading north and the other heading east. After several minutes, the northbound
PIT_PIT [208]

Answer:

Step-by-step explanation

Use Pythagoras theorem. The distance between the cars, 8km, is the hypotenuse of a right angled triangle, one leg of which is 6km and the other of which is, say, x km

x = sqrt(8^2 - 6^2) km.

You can crunch the numbers.

4 0
2 years ago
Find the mass of 250 ml of water. The density of water is 1 g/ml.
alexandr1967 [171]

Answer:

250g

Step-by-step explanation :

250ml x 250g/ml = 250 g

To get the mass (in grams), you need to divide the ml's off and get the g alone.

7 0
2 years ago
Which set of values could be the side lengths of a 30-60-90 triangle?
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0 it is hope it is right
4 0
3 years ago
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mark mowed 1/3 of a football field. he mowed equal amounts over 2 hours how much of a field did mark mow each hour?
grigory [225]

Answer: 1/6


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