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
Debora [2.8K]
3 years ago
12

One three rolls of a single die, you will lose $14 if a 6 turns up at least once, and you will win $6 otherwise. What is the exp

ected value of the game?
Mathematics
1 answer:
horrorfan [7]3 years ago
3 0
The probability against a 6 turning up is (5/6)^3, or 0.5787037037037037037037037037037. So, the probability of at least one 6 rolled is 1-0.5787037037037037037037037037037=0.4212963. So:
5787037037037037037037037037037 x 6=3.4722222222222222222222222222222
0.4212963 x -14=-5.8981481481481481481481481481481
So, the expected value is 3.4722222222222222222222222222222
-5.8981481481481481481481481481481=$-2.426, or a loss of $2.43
☺☺☺☺





You might be interested in
Please help, I have no idea what it's asking :')
Andre45 [30]

the answer is step by step CFE

3 0
2 years ago
HDTV screens usually have a width-to -height ratio of 16:9. Which screen dimensions are in the same proportion?
love history [14]

Answer:

4 feet by 3 feet

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

Please have a look at the attached photo.  

My answer:

width-to -height ratio of 16:9

Let analyse all possible answers:

  • 4 feet by 3 feet

16 divided by 4 is the same as 9 divided by 3 => it is true

  • 28 inches by 21 inches

16 divided by 28 is different as 9 divided by 21 => it is wrong

  • 48 centimeters by 27 centimeters

16 divided by 48 is different as 9 divided by 27 => it is wrong

  • 26 inches by 19 inches

16 divided by 26 is different as 9 divided by 219=> it is wrong

We choose A.

Hope it will find you well.

7 0
3 years ago
a playground is 750 M long and 250 m broad find the cost of levelling at rupees 16 per 100 square metres​
barxatty [35]

Answer:

Area of play ground = Length × Breadth = 750 × 250 = 187500. a Cost of levelling the ground = 187500 × 16 100 = Rs . 30000 

4 0
2 years ago
If the function f(x)=-1/2x-7 were graphed, which of the following would be true? A. The y-values would be negative. B. As the x-
vagabundo [1.1K]

f(x)= -1/2x-7 (better expressed as   f(x) = (-1/2)x - 7  )   has a negative slope, so as x increases, y decreases.  Answer D is correct.


3 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!!!!
attashe74 [19]
For this case what we must do is use the law of cosines.
 We then have the following equation:
 c ^ 2 = a ^ 2 + b ^ 2 - 2 * a * b * cos (x)

 Where,
 a, b: sides of the triangle
 x: angle between sides a and b.
 Substituting values we have:
 c^2 = 90^2 + 75^2 - 2*90*75*cos(85)

 Clearing the value of c we have:
 c =  \sqrt{ 90^2 + 75^2 - 2*90*75*cos(85)}
 Answer:
 
An expression that is equivalent to how many feet the oak trees are from each other is:
 
c = \sqrt{ 90^2 + 75^2 - 2*90*75*cos(85)}
7 0
3 years ago
Other questions:
  • Polygon ABCDE is reflection to produce polygon A’B’C’D E’. What is the equation for the line of reflection
    5·1 answer
  • 4: 15^0=? <br><br> a:0 (my answer) <br> b:1 <br> c:15 <br> d:1/15
    9·1 answer
  • Someone help PLEASE
    6·1 answer
  • Question 3 Solve for m. 4 over 3 m equals 4
    7·1 answer
  • How many different combinations of two can be made from 80 people?
    6·1 answer
  • What tool would use to measure around a cup​
    13·1 answer
  • Please give me the correct answer.​
    7·1 answer
  • Colton scored a 70 on his first history test of the term and a 91 on the second history test. Coltons score increased by what pe
    7·2 answers
  • Dora is babysitting over the summer. She charges an initial fee of $10 plus $5 per hour. Proportional Proportional Non-Proportio
    13·1 answer
  • Here is a sketch of y=x^2 +bx+c
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!