1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andrey2020 [161]
4 years ago
8

Need help with function

Mathematics
2 answers:
bazaltina [42]4 years ago
8 0
The answer is B, according to the Rules / Laws of Functions.
IRISSAK [1]4 years ago
8 0
B is a function because it is the only one that has 4 different x values, therefore passing the vertical line test.
You might be interested in
Find the value of x.
Sonja [21]

Answer:

4. x=10

5. x=15

6. x=20

7. x=4

Step-by-step explanation:

4. 50+4x=90

90-50=40

40/4=10

x=10

5. (2x+60)+6x=180

6x+2x=8x

8x+60=180

180-60=120

8x=120

120/8=15

x=15

6. 3x+30=90

90-30=60

60/3=20

x=20

7. (8x+120)+7x=180

8x+7x=15x

15x+120=180

180-120=60

15x=60

60/15=4

x=4

4 0
3 years ago
If you draw a card with a value of four or less from a standard deck of cards I will pay you $43 if not you pay me $10. Step 1.
Vera_Pavlovna [14]

The expected value of the game is its average earnings

  • The expected value of a round is $2.23
  • The expected value when the game is played 755 times is $1683.65

<h3>How to determine the expected value of a round</h3>

There are 12 cards with a value of 4 or less.

So, the probability of selecting a card with a value of 4 or less is:

P(x \le 4) = \frac{12}{52}

The probability of selecting a card with a value more than 4 is the complement of the above probability.

So, we have:

P(x > 4) = 1 - \frac{12}{52}

P(x > 4) =  \frac{40}{52}

The expected value is then calculated as:

E(x) = \frac{12}{52} * 43 - \frac{40}{52} * 10

Evaluate

E(x) = \frac{12* 43 - 40 * 10}{52}

E(x) = \frac{116}{52}

Simplify

E(x) = 2.23

Hence, the expected value of a round is $2.23

<h3>The expected value when the game is played 755 times</h3>

In (a), we have:

E(x) = 2.23

In probability, we have:

E(nx) = n * E(x)

So, we have:

E(755x) = 755 * 2.23

E(755x) = 1683.65

Hence, the expected value when the game is played 755 times is $1683.65

Read more about expected values at:

brainly.com/question/15858152

6 0
3 years ago
How can you identify a linear nonproportional relationship from a table, a graph, and an equation?
Olegator [25]

Answer:21

Step-by-step explanation:

8 0
3 years ago
52 = 4/5m + 12<br>A. -80<br>B. 50<br>C. -50<br>D. 80​
vredina [299]

Answer:

B. 50

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Help with the image below
Yuki888 [10]

Answer:

3x +12

Step-by-step explanation:

3 0
4 years ago
Other questions:
  • Select the graph of the equation below.<br> y= -1/4x^2+1
    6·1 answer
  • 2/3+y−4/5=1/3<br><br> by the way 2/3,4/5, and 1/3 are fractions
    5·1 answer
  • How many 4/5 cup servings are in 4/9 of a cup of yogurt
    9·1 answer
  • Simplify prime number 52
    8·1 answer
  • Name: cuiusly thens
    12·1 answer
  • How do i solve this problem.. A box of granola contains 16.8 ounces. it cost $5.19. what is the cost ,to the nearest cent,of the
    7·1 answer
  • What is − 3 ( − 2 ) ( − 4)
    10·2 answers
  • Please help out !!!!!!!!
    10·1 answer
  • 50% of the tickets sold at a water park were child tickets. If the park sold 44 tickets in all, how many child tickets did it se
    15·2 answers
  • 60 pts urgent help
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!