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
lesantik [10]
3 years ago
14

How do I find the area. Please explain

Mathematics
1 answer:
olganol [36]3 years ago
7 0
All you have to do is multiply it then you get the answer
You might be interested in
Find the sum of 10x^2-6 and x +6​
Reptile [31]

Answer:

10x2+x

Step-by-step explanation:

8 0
2 years ago
Which table represents the function y = 2x + 4?
bearhunter [10]

Answer:

the solution is b

(-2,8) (0,4) (2,8)

7 0
3 years ago
Read 2 more answers
In the game of​ roulette, a wheel consists of 38 slots numbered​ 0, 00,​ 1, 2,..., 36. To play the​ game, a metal ball is spun a
Oxana [17]

Answer:

E(X)=-0.0526

Sd(X)=5.763

Step-by-step explanation:

In statistics and probability analysis, the expected value "is calculated by multiplying each of the possible outcomes by the likelihood each outcome will occur and then summing all of those values".

The variance of a random variable Var(X) is the expected value of the squared deviation from the mean of X, E(X).

And the standard deviation of a random variable X is just the square root of the variance.  

Let X be a random variable which denotes the money you may win or lose on each spin.

In the game of roulette, a wheel consists of 38 slots. To play the game, a metal ball is spun around the wheel and is allowed to fall into one of the numbered slots. If the number of the slot the ball falls into matches the number you selected, we win $35; otherwise we lose $1.  So we have just one possibility to win and 37 of lose on an individual game.

___________________________

X            P(X)

___________________________

35           1/38

-1            37/38

___________________________

In order to calculate the expected value we can use the following formula:

E(X)=\sum_{i=1}^n X_i P(X_i)

And if we use the values obtained we got:

E(X)=(35)*(\frac{1}{38})+(-1)(\frac{37}{38})=-0.0526

In order to find the standard deviation we need to find first the second moment, given by :

E(X^2)=\sum_{i=1}^n X^2_i P(X_i)

And using the formula we got:

E(X^2)=(35^2)*(\frac{1}{38})+((-1)^2)(\frac{37}{38})=33.211

Then we can find the variance with the following formula:

Var(X)=E(X^2)-[E(X)]^2 =33.211-(-0.0526)^2 =33.208

And then the standard deviation would be given by:

Sd(X)=\sqrt{Var(X)}=\sqrt{33.208}=5.763

4 0
3 years ago
You invest $1,250 in a stock. The value of the stock goes up 3.2% and you sell it. How much money did you make?
suter [353]

Answer:

$1290

Step-by-step explanation:

1250x3.2%=40

1250+40=1290

4 0
3 years ago
Read 2 more answers
Subtract : 5/6 from 7/4
castortr0y [4]
7/4 - 5/6

42/24-20/24

Answer =    22/24

hope this helps
4 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP ASAP
    7·1 answer
  • Solve for f.<br><br> –7f − 9 = 9 − 4f<br><br> f =
    5·1 answer
  • True or false.
    9·1 answer
  • What is the value of 4p4
    6·1 answer
  • If &lt;10 and &lt;15 are congruent, which lines are parallel? A.lines b and c B.lines c and d C.lines a and b D.No lines are par
    12·1 answer
  • Find the following Key Features of the Graph. Please submit a picture of your work or a
    10·1 answer
  • A bag contains 9 red marbles,7 blue marbles, and 4 green marbles. A randomly drawn marble is blue?
    14·1 answer
  • James decides to invest money in Wal-Mart. As a shareholder, he has the advantage of
    7·1 answer
  • Need help ASAP please
    7·1 answer
  • Been trying to solve this, need help
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!