Assuming a poisson distribution, on the average, 6 cars arrive at the drive-up window of a bank every hour. Compute the probability that no more than 5 cars will arrive in the next hour.
The probability that no more than 5 cars will arrive in the next hour is approximately 0.744.
Poisson Probability ComputationLet X be the number of cars that arrive at the drive-up window of the bank in an hour, and let λ be the average number of cars that arrive in an hour, which is 6.
We know that X follows a Poisson distribution with parameter λ, so we have:P(X ≤ 5) = ∑_{k=0}^{5} (e^(-λ) * λ^k) / k!
where e is the mathematical constant approximately equal to 2.71828.
Substituting the values, we get:P(X ≤ 5) = ∑_{k=0}^{5} (e^(-6) * 6^k) / k!
Using a calculator or software, we can compute this sum as:P(X ≤ 5) = 0.744
Therefore, the probability that no more than 5 cars will arrive in the next hour is approximately 0.744.
The formula and method I used to solve this problem are specific to situations where we have a Poisson distribution, where the number of events occurring in a fixed interval of time, space or other units are independent, and the average rate of occurrence is known.
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A box is to be made out of a 10 cm by 20 cm piece of cardboard. Squares of side length cm will be cut out of each corner, and then the ends and sides will be folded up to form a box with an open top. (a) Express the volume V of the box as a function of x. V = cm^3 (b) Give the domain of V in interval notation. (Use the fact that length and volume must be positive.) = ? (c) Find the length L , width W, and height H of the resulting box that maximizes the volume. (Assume that W < or = to L ) L= ?cm W= ?cm H= ? cm (d) The maximum volume of the box is ? cm^3.
(a) The volume V of the box as a function of x is V = 4x^3-60x^2+200x
(b) The domain of V in interval notation is 0<x<5,
(c) The length L , width W, and height H of the resulting box that maximizes the volume is H = 2.113, W = 5.773, L= 15.773
(d) The maximum volume of the box is 192.421 cm^2.
In the given question,
A box is to be made out of a 10 cm by 20 cm piece of cardboard. Squares of side length cm will be cut out of each corner, and then the ends and sides will be folded up to form a box with an open top.
(a) We have to express the volume V of the box as a function of x.
If we cut out the squares, we'll have a length and width of 10-2x, 20-2x respectively and height of x.
So V = x(10-2x) (20-2x)
V = x(10(20-2x)-2x(20-2x))
V = x(200-20x-40x+4x^2)
V = x ( 200 - 60 x + 4x^2)
V = 4x^3-60x^2+200x
(b) Now we have to give the domain of V in interval notation.
Since the lengths must all be positive,
10-2x > 0 ≥ x < 5 and x> 0
So 0 < x < 5
(c) Now we have to find the length L , width W, and height H of the resulting box that maximizes the volume.
We take the derivative of V:
V'(x) = 12x^2-120x+200
Taking V'(x)=0
0 = 4 (3x^2-30x+50)
3x^2-30x+50=0
Now using the quadratic formula:
x=\(\frac{-b\pm\sqrt{b^2-4ac}}{2a}\)
From the equationl a=3, b=-30, c=50
Putting the value
x=\(\frac{30\pm\sqrt{(-30)^2-4\times3\times50}}{2\times3}\)
x= \(\frac{30\pm\sqrt{900-600}}{6}\)
x= \(\frac{30\pm\sqrt{300}}{6}\)
x= \(\frac{30\pm17.321}{6}\)
Since x<5,
So x= \(\frac{30-17.321}{6}\)
x= 2.113
So H = 2.113, W = 5.773, L= 15.773.
d) Now we have to find the maximum volume of the box.
V = HWL
V= 2.113*5.773*15.773
V = 192.421 cm^3
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For each set of probabilities, determine if the events A and B are mutually exclusive. P(A)=1/2, P(B)=1/3, P(A or B)=2/3
Events A and B are not mutually exclusive. Two events are mutually exclusive if they cannot occur at the same time. In other words, if event A occurs, then event B cannot occur, and vice versa.
The probability of two mutually exclusive events occurring together is 0. In this case, P(A) = 1/2, P(B) = 1/3, and P(A or B) = 2/3. Since P(A or B) is greater than P(A) + P(B), it follows that events A and B are not mutually exclusive.
To see this more clearly, let's consider the following possible outcomes:
Event A occurs: This happens with probability 1/2.
Event B occurs: This happens with probability 1/3.
Both events A and B occur: This happens with probability 2/3 - 1/2 - 1/3 = 0.
As we can see, it is possible for both events A and B to occur. Therefore, events A and B are not mutually exclusive.
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how to solve this math equation
so we know the equation to get the total forces is
\(\cfrac{Kg\cdot m}{s^2} ~~ \begin{cases} Kg=kilograms\\ m=meters\\ s=seconds \end{cases}\implies Kg\cdot \cfrac{m}{s^2}\implies Kg\cdot (acceleration)\)
the idea being, well, we have to do unit conversion, we know the object has a mass of 80 grams, hmmm that's not Kilograms, however since there are 1000 grams in a Kg, we can just convert that, and the acceleration of it is 20 m/s², so
\(\stackrel{ Kilograms }{\cfrac{80}{1000}}\cdot \stackrel{ accelaration }{20}\qquad \impliedby \textit{sum of the forces}\)
Identify the data that could be quadratic.
Option c) is the data that could be quadratic.
Define quadratic.The definition of a quadratic as a second-degree polynomial equation demands that at least one squared term must be included. It also goes by the name quadratic equations. The quadratic equation has the general form ax2 + bx + c = 0. An expression containing a variable having the largest power of two is called a quadratic expression. From the word quad, which means square, comes the word quadratic. The power of the expression should be two, not higher or lower.
Given,
Data that could be quadratic:
Option c)
It is the second-degree polynomial equation demands that at least one squared term must be included.
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Levi drove 242 miles in 4 hours. On average, how fast did he drive in miles per hour? Express your answer in simplest form.
Answer:
see below
Step-by-step explanation:
Take the miles and divide by the hours
242/4 =
divide the top and bottom by 2
121/2 miles per hour as an improper fraction
60 1/2 miles per hour as a mixed number
Emoji were first introduced on Japanese mobile phones in the year 1997.Write an inequality that describes y, the years before emoji were introduced.
Enter your inequality without a thousands separator.
The inequality that represents the years before emoji were introduced is y < 1997.
To describe the years before emoji were introduced, we can use the inequality:
y < 1997
In this inequality, "y" represents the number of years before 1997. The symbol "<" means "less than," indicating that "y" should be a year prior to 1997 for the statement to be true.
This inequality restricts the possible values of "y" to any year before 1997.
For example, if we substitute "y" with the value 1990, the inequality would be true:
1990 < 1997
This statement is true because 1990 is indeed less than 1997. However, if we substitute "y" with a value after 1997, such as 2000, the inequality would be false:
2000 < 1997
This statement is false because 2000 is not less than 1997.
Therefore, any value of "y" that satisfies the condition y < 1997 represents a year before emoji were introduced.
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A hypothesis test is to be performed for a population mean. Which of the following does the probability of a type II error not depend on?
options:
The significance level
The sample mean
The sample size
The true (population) mean
When a thesis test is being performed for a population mean, the probability of a type II error isn't dependent on the sample mean. Option B is the right answer.
A type II error occurs when a null thesis isn't rejected despite it being incorrect. It's worth noting that the threat of making a type II error is affected by several factors, including the sample size, the true population mean, the position of significance, and the variability of the data.
As a result, the larger the sample size, the lower the threat of making a type IIerror.The true population mean also has an impact on the liability of a type II error. As the difference between the true mean and the hypothecated mean grows, the threat of a type II error decreases.
The position of significance is also pivotal in determining the threat of a type II error. As the significance position increases, the threat of a type II error decreases.
So, the correct answer is B
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Ms. Lang lives in Lansing, Michigan. Last year, she made 4 round trips to Chicago, Illinois (a distance of 218 miles each way) and 6 round trips to Louisville, Kentucky (a distance of 364 miles each way). How many more miles did she travel in her trips to Louisville than in her trips to Chicago?
Answer:
1312 miles
Step-by-step explanation:
To solve this, we simply need to subtract the distance she traveled in her trips to Chicago from the distance she traveled in her trips to Louisville.
She made 4 round trips to Chicago, Illinois. Each of the trips is a distance of 218 miles. This means that the total distance she traveled is:
4 * 218 = 872 miles
She made 6 round trips to Louisville, Kentucky/ Each of the trips is a distance of 364 miles. This means that the total distance she traveled is:
6 * 364 = 2184 miles
Therefore, the difference between the distances she traveled is:
2184 - 872 = 1312 miles
She traveled 1312 miles more in her trips to Louisville than in her trips to Chicago.
help asap if you can pls an thank u!!!!!!!
The value of angle S is 53°
What is exterior angle theorem?Exterior angle theorem states that the measure of an exterior angle of a triangle is equal to the sum of two remote interior angles.
With this theorem we can say that
7x+2 = 4x+13+19
collecting like terms
7x -4x = 13+19-2
3x = 30
divide both sides by 3
x = 30/3
x = 10
Since x = 10
angle S = 4x+13
angle S = 4(10) +13
= 40+13
= 53°
Therefore the measure of angle S is 53°
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The express bus from Dublin to Belfast takes x mins the standard bus takes 29 mins longer.
write down an expression for the time the standard bus takes.
The airplane takes half the time the express bus takes.
write down an expression for the time the airplane takes.
The standard bus takes x + 29 minutes and the airplane takes x / 2 minutes.
The express bus from Dublin to Belfast takes x minutes, and the standard bus takes 29 minutes longer.
To find the time the standard bus takes, we simply add 29 minutes to the time the express bus takes.
The expression for the time the standard bus takes is:
Standard bus time = x + 29
The airplane takes half the time the express bus takes.
To find the time the airplane takes, we divide the time the express bus takes by 2.
The expression for the time the airplane takes is:
Airplane time = x / 2.
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What is the equation of the additive relationship represented by this table?
Enter your answer by filling in the box using an integer.
x y
9 5
12 8
Answer:
x-4=y
Step-by-step explanation:
I don't want to explain just trust me.
in 2018, in harris county alone, the houston chronicle documented a total of 76 contested judicial races. more than 20 contested district and county judicial races appeared on the bexar county ballots. what is the biggest effect that electing so many public officials has on voters?
The biggest effect of electing so many public officials is that it can be difficult for voters to make informed decisions.
With so many candidates to choose from, voters may not have the time or resources to thoroughly research each candidate and their qualifications. This can lead to uninformed voting, where voters may simply choose a candidate based on their name recognition, party affiliation, or other superficial factors.
Additionally, contested elections can also lead to an increase in negative campaigning and attack ads, which can further cloud voters' perceptions of the candidates and the issues at stake. Ultimately, electing a large number of public officials can make it harder for voters to feel confident in their choices and can undermine the democratic process.
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Seventh grade
According to his running log, Joe averaged 3 miles per week this month, which is 50% more
than last month. How much did he average last month?
Answer:
1.5 Miles per Week
Step-by-step explanation:
So first you can take 50% and turn it into a decimal 0.50
Then you times it by how much he ran this month
3x0.50=1.5
what is the equivalent ratio of 26:7
Answer:
52 : 14
Step-by-step explanation:
multiply the numbers by 2
9 times the sum of 9b and 2
Answer:
9(9b+2)
Step-by-step explanation:
The words 'the sum of mean parenthesis.
And so 9 would be outside the parenthesis, then 9b and 2 would be inside.
The area, in square meters, of a pond covered by an algae bloom decreases exponentially after a treatment is applied. fill out the table, giving the area covered by the algae in square meters d days after the treatment is applied. all answers can be rounded to the nearest tenth.
The area covered by the algae in square meters d days after the treatment is applied can be calculated using the formula A = A0 * e^(-k*d), where A is the final area covered by the algae, A0 is the initial area covered by the algae, e is the base of the natural logarithm, k is the decay constant, and d is the number of days after the treatment is applied.
To fill out the table, you will need to plug in different values for d into the formula and calculate the corresponding values for A. Start with the initial area covered by the algae, A0, and then use the formula to calculate the area covered by the algae for each subsequent day, d. Round the values to the nearest tenth.
For example, if A0 is 100 square meters and k is 0.05, you can calculate the area covered by the algae after 1 day by plugging in d = 1 into the formula:
A = 100 * e^(-0.05*1) = 100 * e^(-0.05) ≈ 100 * 0.951 ≈ 95.1 square meters
Repeat this calculation for different values of d to fill out the table. Remember to round the values to the nearest tenth.
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What is the y-value of the solution to the system of equations shown below? y=2x-9 x+y=12
Solution
For this case we have this:
y= 2x -9 (1)
And replacing equation (1) into the second we got:
x + 2x -9= 12
3x = 12+9
3x = 21
x = 21/3 = 7
And solving for y we got:
y = 2*7 -9 = 14 -9 =5
The graph shows the number of paintballs a machine launches, y, in x seconds: A graph titled Rate of Launch is shown. The x axis label is Time in seconds, and the x axis values are from 0 to 10 in increments of 2 for each grid line. The y axis label is Number of Balls, and the y axis values from 0 to 60 in increments of 12 for each grid line. A line is shown connecting points on ordered pair 2, 12 and 4, 24 and 6, 36 and 8, 48. Which expression can be used to calculate the rate per second at which the machine launches the balls? (5 points) fraction 12 over 2 fraction 2 over 12 fraction 48 over 2 fraction 2 over 48
Fraction 12 over 2 can be used to calculate the rate per second at which the machine launches the balls
What is Slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
The x axis label is Time in seconds, and the x axis values are from 0 to 10 in increments of 2 for each grid line.
The y axis label is Number of Balls, and the y axis values from 0 to 60 in increments of 12 for each grid line
A line is shown connecting points on ordered pair (2, 12) and (4, 24) and (6, 36) and (8, 48)
m=24-12/4-2
m=12/2
Hence, fraction 12 over 2 can be used to calculate the rate per second at which the machine launches the balls
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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
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.
Jorge's friend Anna planted a garden with the same ratio of tulips to daisies. Anna's garden has 21 tulips. How many total flowers are in Anna's garden?
Answer:
48 flowers
Step-by-step explanation:
Since, the ratio of tulips to daisies are the same.
Hence, if we have x number of daisies, then the number of tulips will also be x.
Therefore, with number of tulips being 21 and equal ratio of daisies will also mean that Anna has 21 daisies .
The total number of flowers will be :
Number of tulips + Number of daisies
21 + 21 = 42 flowers
Solve x3= 27.
A = 13
B. x= 5.2
C. x=3
D. x=9
Answer:
x³=27
cuberoot√x³=cuberoot of 27
x=3
Answer:
C
3×3×3
=9×3
=27
so the answer is C
Nolan bought a bag of parsnips that weighed 2 1/2 pounds. he also bought a bag of turnips that weighed 5 times as much as the parsnips. how many pounds of turnips did nolan buy?
According to the given statement of the Nolan bought 5 pounds of turnips.
To find out how many pounds of turnips Nolan bought, we need to calculate the weight of the turnips. We are given that the bag of parsnips weighed 2 1/2 pounds.
The weight of the turnips is 5 times the weight of the parsnips. To find the weight of the turnips, we can multiply the weight of the parsnips by 5.
2 1/2 pounds can be written as 2 + 1/2 pounds.
To multiply a whole number by a fraction, we multiply the whole number by the numerator and divide by the denominator.
So, 2 * (1/2) = 2/2 = 1
Therefore, the parsnips weigh 1 pound.
Now, we can calculate the weight of the turnips by multiplying the weight of the parsnips (1 pound) by 5.
1 pound * 5 = 5 pounds.
Therefore, Nolan bought 5 pounds of turnips.
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The weight of the parsnips that Nolan bought is 2 1/2 pounds. To find out how many pounds of turnips Nolan bought, we need to multiply the weight of the parsnips by 5, since the turnips weigh 5 times as much as the parsnips. Nolan bought 12 1/2 pounds of turnips.
First, we need to convert the mixed number 2 1/2 to an improper fraction. To do this, we multiply the whole number (2) by the denominator (2) and add the numerator (1). This gives us 5 as the numerator, and the denominator remains the same (2). So, 2 1/2 is equal to 5/2.
Now, let's multiply the weight of the parsnips (5/2 pounds) by 5 to find the weight of the turnips. When we multiply a fraction by a whole number, we multiply the numerator by the whole number and keep the denominator the same.
So, 5/2 multiplied by 5 is (5 * 5) / (2 * 1) = 25/2 = 12 1/2 pounds.
Therefore, Nolan bought 12 1/2 pounds of turnips.
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Which function does not have a period of 27? A. y = csc x B. y = cos x C. y = tan x D. y = sec x
All the functions a to d have a period of 2π
Which function does not have a period of 2π?From the question, we have the following parameters that can be used in our computation:
The functions
A sinusoidal function is represented as
f(x) = Asin(B(x + C)) + D
Where
Period = 2π/B
In the functions (a to d), we have
B = 1
So, we have
Period = 2π/1
Evaluate
Period = 2π
Hence, all the functions have a period of 2π
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Which of the following describes the solution to the equation c²+2c-4-1-2c? O-5 is an extraneous solution, and 1 is a true solution. O-5 is a true solution, and 1 is an extraneous solution. O Both -5 and 1 are true solutions. O Both -5 and 1 are extraneous solutions.
Both -5 and 1 are extraneous solution to the equation
What is quadratic equation?A quadratic equation is a second-order polynomial equation in a single variable x ax2+bx+c=0. with a ≠ 0 . Because it is a second-order polynomial equation, the fundamental theorem of algebra guarantees that it has at least one solution. The solution may be real or complex.
c²+2c-4-1-2c = 0
c²+2c-2c -4-1 = 0
c²-5 = 0
Therefore both -5 and 1 are extraneous solution in the equation.
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I’ll give brainliest award please help
Answer:
its 95
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
Given the interval (9, 900 )
The parenthesis on either side of the interval indicates that x cannot equal 9 or 900, thus
9 < x < 900 , or
{ x | 9 < x < 900 , x ∈ R }
Right triangles MNP and QRS are congruent. Right triangles M N P and Q R S are shown. The length of side Q S is 8 meters. The length of M N is 17 meters and the length of P N is 15 meters. What is the area of △MNP? 40 m2 60 m2 68 m2 127.5 m2
Answer:
60m2
Step-by-step explanation:
I just dd it on edge 21 :)
The area of the triangle will be equal to 60 square meters. The correct option is B.
What is the area of a triangle?Triangle is a shape made of three sides in a two-dimensional plane. the sum of the three angles is 180 degrees.
The space occupied by any two-dimensional figure in a plane is called the area. The two-dimensional space occupied by the triangle is called the area of the triangle.
Given that right triangles, MNP and QRS are congruent. Right triangles M N P and Q R S are shown. The length of side Q S is 8 meters. The length of M N is 17 meters and the length of P N is 15 meters.
The area of the triangle is calculated as,
Area = (1/2) x PN x QS
Area = (1/2) x 8 x 15
Area = 4 x 15
Area = 60 square meters
Therefore, the area of the triangle will be equal to 60 square meters. The correct option is B.
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If m<1 = (7x-19), and m<2 = (x + 5)°, find m2
Answer: m<2 = 18°
Step-by-step explanation:
m<1 + m<2 = 90°
7x - 19 + x + 5 = 90°
First add common variables; 7x + x = 8x || -19 + 5 = -14
8x - 14 = 90°
Second add 14 on both sides;
8x - 14 = 90°
+14 +14
8x = 104°
Third divide 8 to 104
\(\frac{8x}{8} = \frac{104}{8}\)
x = 13
m<1 7(13) - 19 + m<2 (13) + 5 = 90°
13 * 7 = 91
91 - 19 = 72
72 + 13 = 85
85 + 5 = 90°
m<2 = 13 + 5 = 18°
Hope this helps! :]
--Blu
How do you write a word phrase for each algebraic expression: t/8 -9
Answer:
t
Step-by-step explanation:
t divided by 8 negative 9
Need help ASAP will give more points
Answer:
30%
Step-by-step explanation:
14+ 18+ 28 = 60
18/60 × 100 = 30%
Answer:
\( \frac{18}{60} = \frac{3}{10} = 30\%\)
Step-by-step explanation:
Total token sample = 14 + 18 + 28 = 60
Frequency of blue:
\( = \frac{18}{60} \: \)
\( = \frac{18}{60} \times 100\%\)
\( = 30\%\)