The probability that eight out of seventeen random receipts will show the order of the Whopper, French fries, and a drink, given that 67% of customers order these items, is approximately 0.09108.
Let's assume that the probability of a customer ordering the Whopper, French fries, and a drink is p = 0.67. Since each receipt is an independent event, we can use the binomial distribution to calculate the probability of obtaining eight successes (receipts showing the order of all three items) out of seventeen trials (receipts).
Using the binomial probability formula, the probability of getting exactly k successes in n trials is given by P(X = k) = C(n, k) * p^k * (1 - p)^(n - k), where C(n, k) represents the number of combinations.
In this case, we need to calculate P(X = 8) using n = 17, k = 8, and p = 0.67. Plugging these values into the formula, we can evaluate the probability. The result is approximately 0.09108, rounded to five decimal places.
Therefore, the probability that eight out of seventeen receipts will show the order of the Whopper, French fries, and a drink, based on a 67% ordering rate, is approximately 0.09108.
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2d²y/dx² + yd²y/dx² = 0, dy/dx at x = 0 = 0, dy/dx at x = infinite = 1, dy/dx at x = 5 = 0.99 d²z/dx² + k/2y dz/dx = 0 z(0) = 0 and z(infinite) = 1 k is just a constant. Solve the differential equations with boundary conditions. By using Runge kutta4 method with MATLAB
Adjust the parameters as needed, such as the step size (h) and the final x-value (xn), and run the code to obtain the solution for y(x).
The resulting plot will show the solution curve.
To solve the given set of differential equations using the Runge-Kutta method in MATLAB, we need to convert the second-order differential equations into a system of first-order differential equations.
Let's define new variables:
y = y(x)
z = dz/dx
Now, we have the following system of first-order differential equations:
dy/dx = z (1)
dz/dx = -k/(2y) (2)
To apply the Runge-Kutta method, we need to discretize the domain of x. Let's assume a step size h for the discretization. We'll start at x = 0 and proceed until x = infinite.
The general formula for the fourth-order Runge-Kutta method is as follows:
k₁ = h f(xn, yn, zn)
k₂ = h f(xn + h/2, yn + k₁/2, zn + l₁/2)
k₃ = h f(xn + h/2, yn + k₂/2, zn + l₂/2)
k₄ = h f(xn + h, yn + k₃, zn + l₃)
yn+1 = yn + (k₁ + 2k₂ + 2k₃ + k₄)/6
zn+1 = zn + (l₁ + 2l₂ + 2l₃ + l₄)/6
where f(x, y, z) represents the right-hand side of equations (1) and (2).
We can now write the MATLAB code to solve the differential equations using the Runge-Kutta method:
function [x, y, z] = rungeKuttaMethod()
% Parameters
k = 1; % Constant k
h = 0.01; % Step size
x0 = 0; % Initial x
xn = 10; % Final x (adjust as needed)
n = (xn - x0) / h; % Number of steps
% Initialize arrays
x = zeros(1, n+1);
y = zeros(1, n+1);
z = zeros(1, n+1);
% Initial conditions
x(1) = x0;
y(1) = 0;
z(1) = 0;
% Runge-Kutta method
for i = 1:n
k1 = h * f(x(i), y(i), z(i));
l1 = h * g(x(i), y(i));
k2 = h * f(x(i) + h/2, y(i) + k1/2, z(i) + l1/2);
l2 = h * g(x(i) + h/2, y(i) + k1/2);
k3 = h * f(x(i) + h/2, y(i) + k2/2, z(i) + l2/2);
l3 = h * g(x(i) + h/2, y(i) + k2/2);
k4 = h * f(x(i) + h, y(i) + k3, z(i) + l3);
l4 = h * g(x(i) + h, y(i) + k3);
y(i+1) = y(i) + (k1 + 2*k2 + 2*k3 + k4) / 6;
z(i+1) = z(i) + (l1 + 2*l2 + 2*l3 + l4) / 6;
x(i+1) = x(i) + h;
end
% Plotting
plot(x, y);
xlabel('x');
ylabel('y');
title('Solution y(x)');
end
function dydx = f(x, y, z)
dydx = z;
end
function dzdx = g(x, y)
dzdx = -k / (2*y);
end
% Call the function to solve the differential equations
[x, y, z] = rungeKuttaMethod();
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Find the area of a rectangle with a length of 3 feet and a width of 2 7/8 feet
Answer:
8.625 or 8 5/8
Step-by-step explanation:
to find area you multiply length times width.
first, change 2 7/8 to an improper fraction to make multiplying easier. 2 7/8= 23/8.
then, multiply 3/1 (or 3) by 23/8. multiply across to get 69/8. Simplify the fraction to get 8 5/8 or 8.625.
NUMBER SENSE
27. Reverse the digits of 432 and subtract the
smaller number from the larger number.
Repeat this procedure five more times.
What is the final difference?
Answer: 99-99=0
Step-by-step explanation:
432,234 432-234=
198,891 891-198 =693
693,396 693-396 =297
297,792 792-297= 495
495,594 594-495=99
99-99=0
use the kkt
Use the method of steepest ascent to approximate the solution to max z = -(x₁ - 3)² - (x₂ - 2)² s. t. (x₁, x₂) E R²
To approximate the solution and maximize the given objective function we need to find the steepest ascent direction and iteratively update the values of x₁ and x₂ to approach the maximum value of z.
The method of steepest ascent involves finding the direction that leads to the maximum increase in the objective function and updating the values of the decision variables accordingly. In this case, we aim to maximize the objective function z = -(x₁ - 3)² - (x₂ - 2)².
To find the steepest ascent direction, we can take the gradient of the objective function with respect to x₁ and x₂. The gradient represents the direction of the steepest increase in the objective function. In this case, the gradient is given by (∂z/∂x₁, ∂z/∂x₂) = (-2(x₁ - 3), -2(x₂ - 2)).
Starting with initial values for x₁ and x₂, we can update their values iteratively by adding a fraction of the gradient to each variable. The fraction determines the step size or learning rate and should be chosen carefully to ensure convergence to the maximum value of z.
By repeatedly updating the values of x₁ and x₂ in the direction of steepest ascent, we can approach the solution that maximizes the objective function z. The process continues until convergence is achieved or a predefined stopping criterion is met.
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anybody know the answer if so can you please provide the step by step so i can understand it
Answer:
35,000 feet
Step-by-step explanation:
So t is the atmospheric temperature
g is the ground temperature
First sub in the values that you know
t = -65.5 and g = 57
-65.5 = -0.0035a + 57
Rearrange: to make 'a' on its own
-65.5 - 57 = -0.0035a
-122.5/-0.0035 = a
Use a calculator
a = 35,000 ft
what is sinB?
15/17
8/17
8/15
15/8
Answer:
817
Step-by-step explanation:
With out calculation the answer, is 1/3 x 7/15 greater or less than 1/3?
Answer:
it might be greater i think
There are 18 boys and 12 girls in a math class . What is the ratio of girls to total students
Answer:
The ratio of girls to total students is 12:30, which can be simplified to 2:5.
Step-by-step explanation:
You can express the ratio in different ways by using the same numbers, for example, you could say that for every 2 girls, there are 5 total students, or that for every 5 total students, 2 of them are girls.
captain rusczyk tracked down a pirate who had stolen $2345 {6}$ dollars worth of goods from his ship. after winning an epic duel, the captain demands that the pirate return $41324 {5}$ dollars. how much has the pirate gone in debt due to his encounter with rusczyk? express your answer in base $10$.
The pirate has gone into debt by $38,979 in base 10 due to his encounter with Captain Rusczyk.
To determine the amount of debt, we need to calculate the difference between the value of the goods the pirate stole and the amount demanded by Captain Rusczyk. The pirate initially stole $2345_6, which means it is in base 6. Converting this to base 10, we have $2\times6^3 + 3\times6^2 + 4\times6^1 + 5\times6^0 = 2\times216 + 3\times36 + 4\times6 + 5\times1 = 432 + 108 + 24 + 5 = 569$.
Captain Rusczyk demanded $41324_5, which means it is in base 5. Converting this to base 10, we have $4\times5^4 + 1\times5^3 + 3\times5^2 + 2\times5^1 + 4\times5^0 = 4\times625 + 1\times125 + 3\times25 + 2\times5 + 4\times1 = 2500 + 125 + 75 + 10 + 4 = 2714$.
Therefore, the pirate has gone into debt by $569 - 2714 = -2145$. Since the pirate owes money, we consider it as a negative value, so the pirate has gone into debt by $38,979 in base 10.
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How many ways can a student work 7 out of 10 questions on an exam?(A) 720(B) 10,000,000(C) 21(D) 120
Therefore, the number of ways a student can work 7 out of 10 questions on the exam is 120, which corresponds to option (D).
The number of ways a student can work 7 out of 10 questions on an exam can be calculated using the concept of combinations.
The formula for combinations is given by:
C(n, k) = n! / (k!(n - k)!)
Where n is the total number of items and k is the number of items chosen.
In this case, the student is choosing 7 questions out of a total of 10, so we have:
C(10, 7) = 10! / (7!(10 - 7)!) = 10! / (7!3!)
Simplifying:
10! = 10 * 9 * 8 * 7!
3! = 3 * 2 * 1
C(10, 7) = (10 * 9 * 8 * 7!) / (7! * 3 * 2 * 1)
The 7! terms cancel out:
C(10, 7) = (10 * 9 * 8) / (3 * 2 * 1)
C(10, 7) = 120
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Answer this question to get marked as brainliest!!!!
Answer:
The radius is 4.5
Step-by-step explanation:
Well circumfrence is basically
2πr=Circumference
In this case
2πr= 28.26
π is about 3.14
2*3.14*r=28.26
Now combine
6.28r=28.26
Now solve
r=4.5
$690 is invested in an account earning 7% interest (APR),
compounded quarterly. Write a function showing the value of the
account after t years, where the annual growth rate can be found from
a constant in the function. Round all coefficients in the function to four
decimal places. Also, determine the percentage of growth per year
(APY), to the nearest hundredth of a percent.
Answer:
a
567 is the answer because of the 7percent
Write the quadratic equation in standard form: 5x^2+3=x
Answer:
5x² - x + 3 = 0
Step-by-step explanation:
The standard form of a quadratic equation is
ax² + bx + c = 0 ( a ≠ 0 )
Given
5x² + 3 = x ( subtract x from both sides )
5x² - x + 3 = 0 ← in standard form
The midpoint of AB is M(1, 1). If the coordinates of A are (-2,5), what are the
coordinates of B?
The coordinates of B are (4 , -3) .
A cartesian coordinate system, which uses signed distances between two fixed perpendicular oriented lines and the point measured in the same unit of length, uniquely identifies any point in a plane by a pair of numerical coordinates.
The origin of each reference coordinate line, known as an axis of the system or simply an axis (plural axes), is the intersection of the ordered pairs (0, 0). The coordinates can also be determined by looking at the locations of the perpendicular projections of the point onto the two axes, which are shown as signed distances from the origin.Let the coordinates of B be (x, y)
As M is the mid point of AB , we know from the distance formula that the coordinates of M will be:
abscissae of M = (-2 + x) /2
or, 1 = (-2 + x) /2
or, x = 4
Ordinate of M = (5 + y)/2
or , 1 = (5 + y)/2
or, y = -3
Therefore the coordinates of B are (4 , -3)
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David express company was asked to deliver 325 boxes of apples. according the rule, the delivery fee is
$25 for each box. if one box lost, the company could not get the delivery fee for the lost box, but should
compensate $75 for the loss. after the delivery, david express company got total $5925, how many boxes
lost?
Answer:
22 boxes were lost. Look for the happy squirrels.
Step-by-step explanation:
Let x be the number of lost boxes. David Express should expect to receive $25 for each of the 325 boxes of apples. That means:
($25)*(325) = $8125
The loss of a box means that the delivery fee would be forfeited, which would amount to: x*($25)
But a compensation fee of $75/box also applies, so the total loss to the income would be x*($25+$75) or x*($100). This would be subtracted from the total expected income of $8125:
Resulting Income: $8125 - ($100)x = $5925
$8125 - ($100)x = $5925
$8125 - ($100)x = $5925
-100x = -2200
x = 22 boxes were lost. Zounds! [A metric term for %$%^&]
===================
Check: Does the loss of 22 of the 325 boxes result in a total payment of $5925?
Delivered boxes: (325 - 22) = 303 boxes delivered. 303*$25 = $7575
Penalty of $75 per lost box: 22*($75) = $1650
Result: $7575 - $1650 = $5925 YES
40 POINTS FOR AWNSER
Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2, and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's profits last month, where x is the number of sandwich lunch specials sold and y is the number of wrap lunch specials sold.
Change the equation to slope-intercept form. Identify the slope and y-intercept of the equation.
Describe how you would graph this line using the slope-intercept method. Be sure to write using complete sentences.
Write the equation in function notation. Explain what the graph of the function represents. Be sure to use complete sentences.
Graph the function. On the graph, make sure to label the intercepts. You may graph your equation by hand on a piece of paper and scan your work or you may use graphing technology.
Suppose Sal's total profit on lunch specials for the next month is $1,593. The profit amounts are the same: $2 for each sandwich and $3 for each wrap. In a paragraph of at least three complete sentences, explain how the graphs of the functions for the two months are similar and how they are different.
Find the measure of the central angle of the sector that represents 64% of a circle graph. Round to the nearest degree if necessary. Show your work!!!!
Answer:
To find the central angle of the sector that represents 64% of a circle graph, we can use the proportion:
64% (or 0.64) of the circle is to 360 degrees as x (the central angle of the sector) is to the angle we're trying to find.
Mathematically, we can write:
0.64/1 = x/360
Simplifying this expression, we get:
x = 0.64 x 360/1
x = 230.4
So the central angle of the sector that represents 64% of the circle graph is approximately 230.4 degrees. Rounded to the nearest degree, this is 230 degrees.
Step-by-step explanation:
I will mark you brainiest!!!
A passenger train left the station and traveled toward Las Vegas at an average speed of 55mph. A cattle train left at the same time and traveled in the opposite direction with an average speed of 65mph. Which equation best represents this situation when the trains are 960 mi apart?
A - 65x - 55(2) = 960
B - 65x - 55x = 960
C - 65x + 55(2) = 960
D - 65x + 55x = 960
E - 65(2) + 55x = 960
Answer:
The answer is b
Step-by-step explanation:
The distance traveled by the passenger train and the cattle train is equal to the total distance between them, which is 960 miles. Let x be the time (in hours) traveled by the passenger train and cattle train. Then, the equation that represents this situation is:
55x + 65x = 960
Simplifying the left-hand side of the equation, we get:
120x = 960
Dividing both sides by 120, we get:
x = 8
Therefore, the correct equation is:
B - 65x - 55x = 960
Preston bought 3 1/4 gallons of milk that cost $2.70
per gallon. What is the total cost of the milk?
1st: Change fraction to decimal
2nd: Multiple the decimal by the $$
3rd: Final Answers
Answer:
umm search on google,use caculater soup
Step-by-step explanation:
Answer:
8.10$?
Step-by-step explanation:
hm idk what to put here but i think thats it unless its not a answer
What is the y-coordinate of point T? Write a decimal coordinate.
On a coordinate plane, point T is 3 units to the left and 4.5 units down.
Answer:
-3,-4.5
Step-by-step explanation:
hope this helps
Answer:
-3,-4.5
Step-by-step explanation:
a set of teams held a round-robin tournament in which every team played every other team exactly once. every team won 10 games and lost 10 games; there were no ties. how many sets of three teams { a , b , c } were there in which a beat b , b beat c , and c beat a ?
385 sets of three teams { a , b , c } were there in which a beat b , b beat c , and c beat a.
Define combination.A combination in mathematics is a choice made from a group of separate elements where the order of the selection is irrelevant.
Given.
Assume that each team played 40 times, winning 20 games and losing 20 games. We can see that each side must have beaten each other once and won against each other once.
Combinations are:
As a result, if we choose any three teams, there will be just one set of games in which A defeats B, B defeats C, and C defeats A. As a result, we simply need to choose three teams from the available 21 options. (Remember that order is irrelevant to set notation.)
Thus
²¹C₃
= 21*20*19/3!
= 7*10*19
= 1330.
However, this is based on 40 games for each side. They actually only participated in 20 games, thus we divided this total by two (665) to arrive at the actual answer.
20 games were played by each side. There must be 21 teams because they cannot compete against one another.
Three-team groups can be chosen.
21!/3!18! = 1330 ways
During the round robin, each will have played the other.
For instance, AB, BC, and CA.
There are two typical results.
The other two players can be defeated by one person. Another winner and loser will result from those two players competing. A team will so win two games, lose two games, and win one game.
Alternatively, each side could have a win and a loss. The question is how many of those three-person groupings are there.
One team wins twice in the first scenario mentioned above. That means two of that team's victories. The games in the group have been chosen. This is achievable.
45 ways divided by 21 players from 10!/2!8! =
945 ways
Therefore, there must be 385 methods left over to represent the scenario in the question after deducting 945 from 1330.
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Determine the domain of f(p)= 4(p) +1000. Justify your answer with an explanation for the domain.
Answer:
Domain: (-∞, ∞)
General Formulas and Concepts:
Alg I
Domain is the set of x-values that can be inputted into function f(x).Step-by-step explanation:
Step 1: Define function
f(p) = 4p + 1000
Step 2: Analyze
We note down that we are not given a restriction or an interval with the function. We also note down that we can plug in any number x and it would give us an output.
Therefore, our domain is All Real Numbers or (-∞, ∞)
A game is made up of two events. One first flips a fair coin, if it is called correctly then the player gets to roll two fair dies (6-sided), otherwise the player uses only one die (6-sided). Find the following: a. probability that the player gets a move (either die or any sum of used dice) on 3 b. for a roll (sum of all dice used) between 5 and 6 would a biased coin (and knowing that bias) give an advantage?
A: The probability that the player gets a move on 3 is 3:42 that is 1:14.
To get into this solution , we first determine all the possible outcomes.
With one dice there are 6 possible outcomes .
With two dice there are 36 possible outcomes because of the combination of the 6 outcomes from each die.
This means there are 36 + 6 = 42 total possible outcomes.
Probability of getting 3 when one dice is rolled - 1:6.
Probability of getting 3 in two dice is rolled-
There are two possible combinations that is - [(1,2) , (2,1)].
This means there are total of 3 outcomes out of 42 possible outcomes.
Hence the probability that the player gets a move on 3 is 1:14.
B: For a roll(sum) between 5 and 6, a biased coin would give the player an advantage.
A biased coin would give the player an advantage because the player can select one die and improve their odds of getting a 5 or a 6 , which is less likely when rolling two dice.
If the biased coin allows the player to choose two die, the odds of getting a 5 or a 6 is 1:4, a simplification of 9 desired outcomes out of a possible 36.
When rolling two dice , there are 36 possible combinations. The combinations that can result in total of 5 or 6 are [(1,4) , (4,1) , (2,3) , (3,2) , (1,5) , (5,1) , (2,4) , (4,2) , (3,3)].
As the player would want to have a better chance of getting a 5 or a 6, they would want to roll one die.
Knowing the outcome of a biased coin would allow them to choose the side that results in rolling one die rather than two.
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Find the area of the following shapes:
Answer:
Area = 20 square units
Step-by-step explanation:
=> We know that;
Base 1: 3 units
Base 2: 7 units
Height: 4 units
=> Now let's come up with a congruent base first:
\(\frac{(3 + 7)}{2}\) = final base
10/2 = final base
5 = final base
=> Finally, Area of the trapezoid:
A = Final Base * Height
A = 5 * 4
A = 20 square units
Hope this helps!
Refer to Table \( \$ 6.1 \)-Factors for Computing Control Chart Limits \( (\underline{3} \) sigma) for this problem. Thirty-five samples of size 7 each were taken from a fertilizer-bag-filling machine
The control chart limits (3 sigma) for the fertilizer-bag-filling machine can be computed using Table $6.1.
How can the control chart limits be computed using Table $6.1 for the given problem?To compute the control chart limits (3 sigma) using Table $6.1 for the fertilizer-bag-filling machine, follow these steps:
Determine the sample size: In this problem, each sample consists of 7 observations.
Calculate the average range (R): For each sample, calculate the range by subtracting the smallest observation from the largest observation. Then, calculate the average range across all 35 samples.
Find the appropriate value from Table $6.1: Locate the row in Table $6.1 corresponding to the sample size (7) and find the factor associated with 3 sigma. This factor represents the number of standard deviations for the control limits.
Compute the control limits: Multiply the average range (R) by the factor obtained from Table $6.1 to determine the width of the control limits. Then, subtract this width from the overall average of the process data to obtain the lower control limit, and add the width to the overall average to obtain the upper control limit.
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(a) Is the image of the dilation a reduction or an enlargement of the original figure? Explain.
(b) What is the scale factor? Explain.
Answer:
Hello it is a reduction because it is smaller then the original shape and the green shape is the dilation!
Its a scale factor of 1/2 Hope this helps!
Answer:
Step-by-step explanation:
It's a reduction (smaller) so the scale factor is less than 1.
In fact it is 1/2 as for example B (4, 4) maps to B' (2, 2).
6(8-2x)=4x what is the answer to this equation?
6(8-2x)=4x
First, apply distributive property:
6 (8)+ 6 (-2x) = 4x
48-12x =4x
Move the "x" terms to the right:
48 = 4x+12x
Combine like terms
48 = 16 x
Divide both sides of the equation by 16:
48/16 = 16x/16
3 = x
x = 3
4x + 13 = -X-7
O No Solutions
O All Real Numbers
O x = 4
O x = -4
Please help it’s a test and I’m very confused
uppose x has a mound-shaped symmetric distribution. A random sample of size 16 has sample mean 10 and sample standard deviation 2. -Find a 95% confidence interval for μ & interpret the confidence interval computed
To find a 95% confidence interval for the population mean μ, we can use the formula:
Confidence Interval = sample mean ± (critical value) * (sample standard deviation / √n)
Given that the sample mean is 10, the sample standard deviation is 2, and the sample size is 16, we can calculate the confidence interval.
First, we need to determine the critical value associated with a 95% confidence level. Since the distribution is mound-shaped and symmetric, we can assume it follows a normal distribution. Looking up the critical value in the standard normal distribution table for a 95% confidence level, we find it to be approximately 1.96.
Substituting the values into the formula, we have:
Confidence Interval = 10 ± (1.96) * (2 / √16)
Simplifying, we get:
Confidence Interval = 10 ± (1.96) * (0.5)
The confidence interval is therefore:
Confidence Interval = 10 ± 0.98
This gives us the interval (9.02, 10.98) as the 95% confidence interval for the population mean μ.
Interpretation: This means that we are 95% confident that the true population mean falls within the interval (9.02, 10.98). It suggests that if we were to repeat the sampling process and construct 95% confidence intervals, approximately 95% of those intervals would contain the true population mean. Additionally, the interval (9.02, 10.98) provides an estimate of the range within which the population mean is likely to fall based on the information from the sample.
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Isaiah's parents put money in a savings account to help pay for college. His account accrues 5% interest on the first $3,000 dollars and 8.5% interest on any additional funds in his savings account. If his parents have saved up a total of $10,000, how much does the account make in interest?