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
Nataliya [291]
3 years ago
13

Harlene tosses two number cubes. If a sum of 8 or 12 comes up, she gets 9 points. If not, she loses 2 points. What is the expect

ed value of the number of points for one roll?
Mathematics
2 answers:
Amanda [17]3 years ago
5 0
P(8 or 12) = 1/6
P(not 8 or 12 = 5/6
Let the expected points fro one roll be X.
E(X)=9\times\frac{1}{6}-2\times\frac{5}{6}=-\frac{1}{6}\ points
The answer is -(1/6) points.
kirill115 [55]3 years ago
3 0

Answer:

-(1/6)

Step-by-step explanation:

You might be interested in
Find the sum of 914 and 878
Cerrena [4.2K]
The word "sum" means addition, so the question is asking you to add 914 and 878.

First you can add the hundreds, so 900 + 800 = 1,700
Then you can add the tens, so 10 + 70 = 80
And finally the units, so 4 + 8 = 12
When you add up all of these, you get your final answer as 1,792.

I hope this helps!
3 0
3 years ago
Read 2 more answers
What is the value of the expression? 1 1/3 x 2/7
natka813 [3]

Answer:

\frac{2}{21}

Step-by-step explanation:

First, apply the fraction rule.

\frac{1}{3}\cdot \frac{2}{7}=\frac{1\cdot \:2}{3\cdot \:7}

=\frac{1\cdot \:2}{3\cdot \:7}\\

Then, I multiplied the numbers on top.

=\frac{2}{3\cdot \:7}

Finally, I multipiled the numbers on the bottom.

=\frac{2}{21}

Hope this helps, and have a blessed day!

3 0
3 years ago
Why can you use cross products to solve the proportion 18/5 = x/100 for x?
skad [1K]

im not 100% sure but im pretty sure it is B

3 0
3 years ago
Read 2 more answers
Which amount of money is possible for Katie to spend for pens and notebooks?
Degger [83]

Answer:

the answer the B

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
The seismic activity density of a region is the ratio of the number of earthquakes during a given time span to the land area aff
Karolina [17]

The correct statement about the earthquake in the state is option c. State A had approximately 3,362 more earthquakes than State B.

<h3>How to solve for the earthquake in the state A</h3>

we have x/y = 0.00299

y = 163696

To solve for x we have

163696 * 0.00299

= 4895 earthquakes

<h3>Next we have to solve for earth quakes in state B</h3>

x = 0.1402 x 10931

= 1533

Next we have to find the difference

4895 - 1533 = 3362 earthquakes.

We have to conclude that state A has 3362 earthquakes more than B. Hence the answer is c.

<h3 />

Read more on seismic activity here:

brainly.com/question/13017813?referrer=searchResults

#SPJ1

Complete question

The seismic activity density of a region is the ratio of the number of earthquakes during a given time span to the land area affected. The table shows the land area and seismic activity density.

Which statement about the number of earthquakes the states had for the given time span is true?

State A had approximately 1,533 more earthquakes than State B.

State B had approximately 1,533 more earthquakes than State A.

State A had approximately 3,362 more earthquakes than State B.

State B had approximately 3,362 more earthquakes than State A.

8 0
1 year ago
Other questions:
  • A baseball player hits a ball. The table represents a quadratic function that shows how the height of the ball changes over time
    13·2 answers
  • Amy has two older brothers. Ben is 3 years older than Amy. Chris is 10 years older than Ben. The total of their ages is 73. Form
    13·2 answers
  • A standard six-sided die is rolled $6$ times. You are told that among the rolls, there was one $1,$ two $2$'s, and three $3$'s.
    13·1 answer
  • X2 + 9x + 2 = 0 has how many real solutions
    9·2 answers
  • Sandeep says that the expression
    12·2 answers
  • PLS HELP ME ON THIS ANSWER I WILL MARK YOU AS BRAINLIEST IF YOU KNOW TGE ANSWER PLS GIVE ME A STEP BY STEP EXPLANATION!!
    10·1 answer
  • Write 0.38 as a fraction in lowest terms.
    10·2 answers
  • Please help asap !! (images below)
    15·1 answer
  • Find the average of this set of numbers.28, 26, 21, 13
    8·2 answers
  • Write the ratios for sin X and cos X.<br><br><br>can someone help me with this? I'm super stuck​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!