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Travka [436]
3 years ago
10

I don't know how to do this.​

Mathematics
1 answer:
mel-nik [20]3 years ago
8 0

Answer:

I need help on this to it's confusing

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13. 27 - 21 =
Verdich [7]

13. 6

14. -35

15. -1

16. -11

17. -3

18. 13

19. 10

20. -32

21. 22

22. -12

23. -47

24. -7

3 0
3 years ago
In a game, you toss a fair coin and a fair six-sided die. If you toss a heads on the coin and roll either a 3 or a 6 on the die,
pochemuha

Using probabilities, it is found that the expected profit of one round of this game is of $0.

A probability is the <u>number of desired outcomes divided by the number of total outcomes</u>.

  • One of the two sides of the coin are heads.
  • 2 of the 6 sides of the dice are 3 or 6.

Hence, since the coin and the dice are independent, the <em>probability </em>of winning is:

p = \frac{1}{2} \times \frac{2}{6} = \frac{1}{6}

The expected value is the <u>sum of each outcome multiplied by its respective probability</u>.

In this problem:

  • \frac{1}{6} probability of earning $30.
  • \frac{5}{6} probability of losing $6.

Then:

E(X) = 30\frac{1}{6} - 6\frac{5}{6} = 5 - 5 = 0

The expected profit of one round of this game is of $0.

A similar problem is given at brainly.com/question/24855677

5 0
3 years ago
Help pls! <br> 3, 6, 2, x <br> X= <br> 9<br> 7<br> 4
Marizza181 [45]

Answer:

Step-by-step explanation:

2x = 3*6

2x/2 = 18/2

x = 9

3 0
3 years ago
Select the equation that represents a line with a slope of 2 and that contains the point (1, -5).
kondor19780726 [428]

To get the equation of a line, you can use the following:

y - y1 = m (x - x1)

Where:

  • m is the slope (2)
  • y1 is the y coordinate of a point  (1, -5)
  • x1 is the x coordinate of the same point (1, -5)

Just substitute in the values:

y - y1 = m (x - x1)

y - (-5) = 2(x - 1)             <em>(  - - 5 = + 5 )</em>

y + 5 = 2(x - 1)

_________________________

Answer:

B. y + 5 = 2(x - 1)

6 0
3 years ago
Plz help me with 17 part a and b I will thank u
podryga [215]
Part A

There are 2 cups in a pint, so 2 x 3 = 6
Plus 5 cups,
1 quart is equal to 1/4 of a gallon, and there are 4 cups in a gallon,
and another quart is 4 more cups,
so add all of the cups together:
6 + 5 + 4 + 4 = 19

Kelly is incorrect, because I added all of the cups together and I got 19. 

Part B

Since 4 cups fit in a quart, and she has 4 quarts, her quarts only hold 16 cups, which isn't enough, because there are 19 cups.

Hope this helped! If you have anymore questions or don't understand, please comment or DM me. :)
6 0
4 years ago
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