Help please i'll give you brainliest

Encontrar la Esperanza Matemática y Desviación Estándar del número de imperfecciones (y) en pizarra acrílica. (2 puntos) y 0 1 2

fredd [130]

Responder:

1,625; 0.8569

Explicación paso a paso:

y ___0 ____ 1 ____ 2 ____3

P (y) _1 / 8 ___ ¼ ___ ½ ____ 1/8

Valor esperado (E (x)): Σx * p (x)

= (0 * (1/8)) + (1 * (1/4)) + (2 * (1/2)) + (3 * (1/8)) = 1,625

La desviación estándar = sqrt (Var (x))

Var (X) = Σx²p (x) * E (x) ²

Var (X) = [(0 ^ 2 * (1/8)) + (1 ^ 2 * (1/4)) + (2 ^ 2 * (1/2)) + (3 ^ 2 * (1 / 8))] - 1.625²

Var (X) = (0 * (1/8)) + (1 * (1/4)) + (4 * (1/2)) + (9 * (1/8)) - 1.625 ^ 2

= 3.375 - 2.640625

= 0,734375

Desviación estándar = Sqrt (0,734375) = 0,8569

7 0

3 years ago

For the function below, give the ordered pair if x = 2 f(x)=-3(x+2)2+9

Kay [80]

Answer:

(2, -39)

Step-by-step explanation:

f(x)=-3(x+2)^2+9

f(2)=-3(2+2)^2+9

f(2)=-3(4)^2+9

f(2)=-3(4)(4)+9

f(2)=-3(16)+9

f(2)=-48+9

f(2)=-39

8 0

2 years ago

26 eggs in a carton were broken. this was 5% of the total number of eggs in the carton. how many eggs were in the carton altoget

lesya692 [45]

Answer:

520 eggs

Step-by-step explanation:

5%*2 is 10%.

10%*10 is 100%,that is the full carton of eggs.

26*2*10 is 520.

There were 520 eggs in the carton altogether.

Hope this helps :)

8 0

3 years ago

NO SCAM. PLEASE SHOW WORK. WILL GIVE BRAINLY TO CORRECT ANSWER.

sergeinik [125]

Answer:

$140$

Step-by-step explanation:

A regular polygon is a shape with equal sides and angles. Because of this, we can write the following equation to set two sides equal to each other:

$3a+b+3=2a+2b+6$

Solving, we will get a in terms of b:

$3a=2a+b+3,\\a=b+3$

Now we can substitute a for (b+3) into our equation:

$5a-2b+1=2a+2b+6,\\5(b+3)-2b+1=2(b+3)+2b+6,\\3b+16=4b+12,\\-b=-4,\\b=\boxed{4}$

Therefore, the length of each side of this polygon is $5(4+3)-2(4)+1=28$ .

Since the perimeter of the polygon consists of all five sides, the perimeter is:

$p=28\cdot 5 =\boxed{140}$

6 0

3 years ago

Read 2 more answers

A recipe calls for 18 ounces of cream cheese and 15 ounces of sugar.How many ounces of sugar are there per ounce of cream cheese

Pavlova-9 [17]

Step-by-step explanation:

MusicLeonard BernsteinLyricsStephen SondheimBookArthur LaurentsBasisRomeo and Juliet

by William ShakespeareProductions1957 Washington, D.C. (tryout)

1957 Philadelphia(tryout)

1957 Broadway

1958 West End

1959 US tour

1960 Broadway revival

1964 Broadway revival

1974 West End revival

1980 Broadway revival

1984 West End revival

1985 US tour

1995 US tour

1998 West End revival

2009 Broadway revival

2010 US tour

2020 Broadway revival

The story is set in the Upper West Sideneighborhood in New York City in the mid 1950s, a multiracial, blue-collar neighborhood. The musical explores the rivalry between the Jets and the Sharks, two teenage street gangsof different ethnic backgrounds. The members of the Sharks, from Puerto Rico, are taunted by the Jets, a white gang.[2] The young protagonist, Tony, a former member of the Jets and best friend of the gang's leader, Riff, falls in love with Maria, the sister of Bernardo, the leader of the Sharks. The dark theme, sophisticated music, extended dance scenes, and focus on social problems marked a turning point in American musical theatre. Bernstein's score for the musical includes "Jet Song", "Something's Coming", "Maria", "Tonight", "America", "Cool", "One Hand, One Heart", "I Feel Pretty", "Somewhere", "Gee, Officer Krupke" and "A Boy Like That".

The original 1957 Broadway production, conceived, directed and choreographed by Jerome Robbins and produced by Robert E. Griffith and Harold Prince, marked Sondheim's Broadway debut. It ran for 732 performances before going on tour. The production was nominated for six Tony Awards including Best Musical in 1958,[3] but the award for Best Musical went to Meredith Willson's The Music Man. Robbins won the Tony Award for his choreography and Oliver Smith won for his scenic designs. The show had an even longer-running London production, a number of revivals and international productions. A 1961 musical film adaptation, directed by Robert Wise and Robbins, starred Natalie Wood, Richard Beymer, Rita Moreno, George Chakirisand Russ Tamblyn. The film was nominated for eleven Academy Awards and won ten, including George Chakiris for Supporting Actor, Rita Moreno for Supporting Actress, and Best Picture.

4 0

3 years ago

Read 2 more answers