The probability of selecting all four bulbs of the same color is approximately 0.0061.
To calculate the probability that all four bulbs are of the same color, we need to consider the following cases,
1) The probability of selecting the first blue bulb is 3/12 (since there are 3 blue bulbs out of 12 total bulbs). After one blue bulb has been selected, there are 2 blue bulbs left out of 11 total bulbs, so the probability of selecting a second blue bulb is 2/11. Similarly, the probability of selecting the third blue bulb is 1/10, and the probability of selecting the fourth blue bulb is 0/9 (since there are no more blue bulbs left). Therefore, the probability of selecting all four blue bulbs is:
(3/12) × (2/11) × (1/10) × (0/9) = 0
2) Using the same logic as in Case 1, the probability of selecting all four green bulbs is:
(4/12) × (3/11) × (2/10) × (1/9) = 1/495
3) The probability of selecting all four red bulbs is:
(5/12) × (4/11) × (3/10) × (2/9) = 2/495
Therefore, the total probability of selecting all four bulbs of the same color is the sum of the probabilities from Cases 2 and 3
1/495 + 2/495 = 3/495
Simplifying this fraction, we get:
3/495 = 1/165
= 0.0061
Learn more about probability here
brainly.com/question/11234923
#SPJ4
wait times of between 0 and 20 minutes at a local restaurant follow a uniform distribution. sketch the distribution use the distribution that a randomly selected diner waits between 2 and 7.5 minutes for a table find the probability a randomly selected diner waits less than 8 minutes for a table find the probability a randomly selected diner waits more than 1.5 minutes
a) The probability of a randomly selected diner waits less than 8 minutes for a table is 0.4
b) The probability of a randomly selected diner waits more than 1.5 minutes is 0.925
Given, wait times of between 0 and 20 minutes at a local restaurant follow a uniform distribution.
The probability density function of a uniform distribution is given by
f(x) = {1/(b-a)} where a ≤ x ≤ b
where a = 0 and b = 20
Therefore, the probability density function of f(x) = 1/20 for 0 ≤ x ≤ 20
For the probability that a randomly selected diner waits between 2 and 7.5 minutes for a table, we need to find the area under the curve from x = 2 to x = 7.5
∴ P(2 ≤ x ≤ 7.5) = ∫₂⁷.⁵(1/20) dx
= 5.5/20 ⇒ 0.275
a) We need to find the area under the curve from x = 0 to x = 8
∴ P(x < 8) = ∫₀⁸(1/20) dx
= 8/20 ⇒ 0.4
b) We need to find the area under the curve from x = 1.5 to x = 20
∴ P(x > 1.5) = ∫₁.₅²⁰(1/20) dx
= 18.5/20 ⇒ 0.925
To know more about the "probability" of a randomly selected: https://brainly.com/question/30044489
#SPJ11
Suppose that the total interest that will be paid on a 40-year mortgage from a home loan of $100,000 is going to be $480,000. What will be the payments each month if the payments are to pay off both the loan and the interest (rounded to the nearest hundredth)?
Since, that the total interest that will be paid on a 40-year mortgage from a home loan of $100,000 is going to be $480,000. Then, the payments each month if the payments are to pay off both the loan and the interest will be $1,504.
The 40-year loan has the lowest monthly payment at $1,504. But that only means "saving" $183 per month on the 30-year loan. When considering the total price of the house in this example, adding an additional 10 years to the term of the loan seems overkill, reducing the monthly payment by less than $200.
A 40-year loan doesn't sound like a good deal. But for homeowners struggling to meet their monthly payments and get a 40-year loan modification, the lower payments could have a big impact.
Comparing the 30-year and 15-year numbers is even more extreme. The monthly payment on the 15-year loan is an additional $700. Some buyers can afford higher payments. The advantage of the 15-year loan is that the total interest paid on the loan is $103,218, compared to $289,970 for the 30-year loan. Fifteen years seems to pass so quickly, and it's an exciting feeling to stop paying.
Objections to the 15-year loan could include a missed opportunity. With an interest rate of 4.67% on the 30-year loan, one can expect a higher rate of return in the long run by investing heavily in the stock market. But that raises the question of whether the $700 a month in cash freed up by the 30-year loan will be invested. It might be tempting to spend that money on a more expensive car than the one you would otherwise have purchased.
A family's needs, including space, savings and investment for retirement and education, as well as many household expenses should be considered when deciding which home to buy and the term of the loan. At a minimum, homebuyers need to understand how the different types of loans work.
Learn more about Payment:
https://brainly.com/question/27628990
#SPJ4
WILL MARK BRAINLEIST!!!!
The last three problems in this set involve the Mean Value Theorem.
Let [a, b] = [0, 1] and let f(x) = x³. Find a number c = _______ such that
f(b) - f(a) = f'(c)(b − a).
Answer:
We have:
a = 0
b = 1
f(x) = x³
f'(x) = 3x²
Using the Mean Value Theorem, we have:
f(b) - f(a) = f'(c)(b - a)
Substituting the given values:
f(1) - f(0) = f'(c)(1 - 0)
Simplifying the left side of the equation:
1³ - 0³ = 1
Simplifying the right side of the equation:
f'(c) = 3c²
Therefore:
3c² = 1
Solving for c:
c² = 1/3
c = ±√(1/3)
Since c must be between 0 and 1, we have:
c = √(1/3)
Therefore, c = √(1/3).
I hope this helps!
Suppose the standard deviation of the ages of all Florida panthers is 14.3 years. Let be the mean age for
a sample of a certain number of Florida panthers. What sample size will give the standard deviation of
equal to 0.8 years?
Round the solution up to the nearest whole number, if necessary.
A sample size οf 805 Flοrida panthers will give a standard deviatiοn οf 0.8 years.
What is revealed by standard deviatiοn?It displays the average deviatiοn οf each scοre frοm the mean. In a nοrmal distributiοn, a high standard deviatiοn indicates that values are spread οut frοm the mean, whereas a lοw standard deviatiοn indicates that values are clustered clοse tο the mean.
We can use the fοllοwing fοrmula tο calculate the sample size that will result in a standard deviatiοn οf 0.8 years:
n = (z * σ / E)²
Where:
The sample size is denοted by n.
z is the desired cοnfidence level's z-scοre (we'll assume 95% cοnfidence, sο z = 1.96)
is the standard deviatiοn οf the pοpulatiοn (given as 14.3 years)
E represents the margin οf errοr (given as 0.8 years)
The fοllοwing results are οbtained when the given values are substituted:
[tex]n = (1.96 * 14.3 / 0.8)^2 \sn = 804.57[/tex]
We get the fοllοwing when we rοund up tο the nearest whοle number:
n = 805
A sample size οf 805 Flοrida panthers results in a standard deviatiοn οf 0.8 years.
To know more about standard deviation visit:
brainly.com/question/23907081
#SPJ1
Use the figure.
A
D
B
1. Given AB = = DC, m/ABD = 35°,
and m/BDC
25°. How does AD
compare to BC?
-
The required length of AD is equal to the length of BC.
Explain about Quadrilateral?
A polygon with four edges, four angles, and four vertices is called a quadrilateral. The Latin terms quadri, which means four, and latus, which means side, were combined to create the English word quadrilateral. A quadrilateral is shown in the above picture as an example.
According to question:First, we draw the quadrilateral ABCD and label the given angles:
[tex]$\begin{align*}\angle ABD &= 35^\circ \\angle BDC &= 25^\circ\end{align*}[/tex]
Since opposite sides of quadrilateral ABCD are equal, we have:
[tex]$\begin{align*}AB &= DC\end{align*}[/tex]
We can use this fact to draw diagonal BD and label its length as x:
[tex]$\begin{align*}AB &= DC \AD + DB &= BC + DB \AD &= BC\end{align*}[/tex]
Therefore, we can conclude that:
[tex]$\begin{align*}AD &= BC\end{align*}[/tex]
Thus, the length of AD is equal to the length of BC.
To know more about Quadrilateral visit:
brainly.com/question/7720055
#SPJ9
From a full deck of 52 bridge cards you receive 6 cards. (a) What is the probability that they are all of the same suit? (b) What is the probability that they contain only one pair?
The probability of drawing 6 cards of the same suit is 0.002% while the probability of drawing a hand containing only one pair is 42.3%.
How to Solve the Probability?(a) The probability of drawing 6 cards of the same suit can be calculated as follows:
First, choose one of the four suits. There are 4 ways to do this.
Next, choose 6 cards from the chosen suit. There are 13 cards in each suit, so there are C(13,6) ways to do this.
Finally, choose any 6 cards from the deck. There are C(52,6) ways to do this.
Therefore, the probability of drawing 6 cards of the same suit is:
P(6 cards of the same suit) = (4 * C(13,6)) / C(52,6) ≈ 0.002%
(b) The probability of drawing a hand containing only one pair can be calculated as follows:
First, choose a rank for the pair. There are 13 ranks to choose from.
Next, choose 2 cards of the chosen rank. There are C(4,2) ways to do this.
Then, choose 4 cards from the remaining 48 cards. There are C(48,4) ways to do this.
Therefore, the probability of drawing a hand containing only one pair is:
P(only one pair) = (13 * C(4,2) * C(48,4)) / C(52,6) ≈ 42.3%
Learn more about probability here: https://brainly.com/question/30390037
#SPJ1
Please ASAP Help
Will mark brainlest due at 12:00
Answer:
D is (3, -2)
Option D
Step-by-step explanation:
If E is the midpoint of DF then the x-distance between D and E must be the same as that between E and F and similarly for the y-distance
In addition, the x, y coordinates of D must be less than the x, y coordinates for E
x-distance from E to F = 5- 4 = 1
x-distance from D to E = 1 so x-coordinate of D = 4 - 1 = 3
y-distance from E to F = 8 - 3 = 5
y-distance from D to E = 3 - 5 = -2
So coordinate of D is(3, -2)
the diagram Shows a sector of a circle radius 10cm and angle 135 degrees find out perimeter
Answer: 22.4 cm
Step-by-step explanation:
Perimeter of sector is: P = 2r + 2πr(θ/360) P = 2*10 + 2(3.14) (135/360) = 22.4 cm (rounded)
Quadrilateral MNOP has vertices M(-2,4) N(-2,1) O(3,1) and P(3,4). what are the coordinates of the image of point P after a reflection across the X-axis??
After just a reflection along the [tex]X-axis[/tex], a quadrilateral [tex]MNOP[/tex] of position [tex]P[/tex] is [tex](3, -4)[/tex].
Describe the quadrilateral form.Four closed sides are making up a quadrilateral. Quadrilaterals are the following figures: Designed by Raphael. a four-sided figure. There is just one pair of parallel sides to the form, and there are no right angles.
With an example, define a quadrilateral.A closed form known as a quadrilateral is known to be have sides with various widths and lengths. It is a closed polygon in two dimensions with four vertices, four angles, and four sides. Some examples of a quadrilateral are a cohesion and coherence, parallelogram, rectangle, rhombus, square, and kite.
When a point is reflected across the [tex]X-axis[/tex], the [tex]X-[/tex]coordinate stays the same, but the [tex]Y-[/tex]coordinate is multiplied by [tex]-1[/tex].
So to find the image of point [tex]P[/tex] after a reflection across the [tex]X-axis[/tex], we keep the [tex]X-[/tex]coordinate of [tex]P[/tex] the same (which is 3) and multiply the [tex]Y-[/tex]coordinate by [tex]-1[/tex]
New [tex]Y-[/tex]coordinate of [tex]P = -1 * 4 = -4[/tex]
Therefore, the image of point [tex]P[/tex] after a reflection across the [tex]X-axis[/tex] is [tex](3, -4)[/tex].
To know more about Quadrilateral visit:
https://brainly.com/question/1389799
#SPJ1
Answer this ASAP, I will give the brainliest answer.
Given that y = 4 cm and θ = 38°, work out x rounded to 1 DP.
The diagram is not drawn accurately.
from S^OH
sinθ=opp/hyp
sin38°=x/4
cross multiply and make x the subject of the formulax=4sin38°
x=4×(0.61566147533)
x=(2.4626459013)
to 1dp
x=2.5cm
A charity organization had to sell a few tickets to their fundraiser just to cover necessary production costs. After selling
10
1010 tickets, they were still at a net loss of
$
800
$800dollar sign, 800 (due to the production costs). They sold each ticket for
$
70
$70dollar sign, 70. Let
�
yy represent the net profit (in dollars) when they have sold
�
xx tickets. Complete the equation for the relationship between the net profit and number of tickets sold
The equatiοn fοr the relatiοnship between the net prοfit and the number οf tickets sοld is y = 70x - 1500.
What is an Equatiοn?In mathematics, an equatiοn is a statement that shοws the equality between twο expressiοns. The equatiοns can cοntain variables, cοnstants, and mathematical οperatiοns such as additiοn, subtractiοn, etc. In wοrd prοblems, the variables represent the unknοwn quantity οr unknοwn number
Here we have
A charity οrganizatiοn had tο sell a few tickets tο their fundraiser tο cοver necessary prοductiοn cοsts.
Cοst οf each ticket =$70
Number οf tickets sοld = 10
Tοtal cοst οf 10 tickets = $ 70 × 10 = $ 700
Lοss after selling 10 tickets = $800
Hence, tοtal cοst οf prοductiοn = $ 700 + $ 800 = $ 1500
Let's assume that they sοld 'x' tickets and gοt 'y' prοfit
=> Tοtal revenue gained by selling tickets = $ 70x
Prοfit y = Tοtal revenue - Prοduct cοst
=> y = 70x - 1500
Therefοre,
The equatiοn fοr the relatiοnship between the net prοfit and the number οf tickets sοld is y = 70x - 1500.
Learn more about Equations at
https://brainly.com/question/14313103
#SPJ1
Complete Question:
A charity organization had to sell a few tickets to their fundraiser just to cover necessary production costs. After selling 10 tickets, they were still at a net loss of $800 (due to the production costs). They sold each ticket for $70. Let y represent the net profit in dollars) when they have sold tickets. Complete the equation for the relationship between the net profit and the number of tickets sold.
A softball coach has ordered softballs for two different leagues. The Junior League uses an 11-inch softball priced at $2.50 each. The Senior League uses a 12-inch softball priced at $3.50 each. The softball coach ordered a total of 120 softballs for $350.
The first step to solving a system of linear equations by substitution is to solve one of the equations for one of its variables. Solve the first equation in the system of equations that you selected above. Write the equation with an isolated variable as your response below.
The number of 11-inch softballs ordered is 70 and the number of 12-inch softballs ordered is 50.
How many of each size of softball was ordered?a + b = 120 equation 1
2.50a + 3.50b = 350 equation 2
Where:
a = number of 11-inch softballs ordered b = number of 12-inch softballs orderedThe substitution method would be used to determine the number of each size of softball ordered.
Make a the subject of the formula in equation 1:
a = 120 - b
Substitute for a in equation 2:
2.50(120 - b) + 3.50b = 350
300 - 2.5b + 3.50b = 350
Combine and add similar terms:
3.5b - 2.5b = 350 - 300
b = 50
Substitute for b in equation 1
a + 50 = 120
a = 120 - 50
a = 70
To learn more about system of equations, please check: https://brainly.com/question/25875552
#SPJ1
A global research study found that the majority of today's working women would prefer a better 'work-life balance' to an increased salary. One of the most important contributors to 'work-life balance' identified by the survey was 'flexibility' with 46% of women saying that having a flexible work schedule is either very important or extremely important to their career success. Suppose you select a sample of 100 working women. (Round answers to four decimal places.) a) What is the probability that, in the sample, fewer than 50% say that having a flexible work schedule is either very important or extremely important to their career success? b) What is the probability that, in the sample, more than 43% say that having a flexible work schedule is either very important or extremely important to their career success?
z = (x - np) / σ
z = (43 - 100(0.50)) / 0.05
z = -1.4
P(z > -1.4) = 0.9192
a) The number of working women in the sample is 100. The majority of women prefer a better 'work-life balance' to a higher salary, according to a global research study. The majority in percentage is 50% or greater, which implies that 50% of 100 working women or more prefer a better work-life balance to an increased salary. If we assume that the null hypothesis is correct and the number of women who say having a flexible work schedule is important is exactly 50, the standard error for the sample can be calculated as follows:
σ = sqrt(p(1-p)/n)
σ = sqrt(0.50(1-0.50)/100)
σ = 0.05
P(x<50) can be calculated as follows:
z = (x - np) / σ
z = (50 - 100(0.50)) / 0.05
z = -20
P(z < -20) = 0
Therefore, the probability that fewer than 50% of the sample say that having a flexible work schedule is either very important or extremely important to their career success is 0.
b) The proportion of women who said having a flexible work schedule is very important or extremely important to their career success is more than 43%. That implies the number of women in the sample who say having a flexible work schedule is important is greater than 43.
P(x > 43) can be calculated as follows:
z = (x - np) / σ
z = (43 - 100(0.50)) / 0.05
z = -1.4
P(z > -1.4) = 0.9192
Therefore, the probability that more than 43% of the sample says having a flexible work schedule is very important or extremely important to their career success is 0.9192.
Learn more about work-life balance
brainly.com/question/6842800
#SPJ4
Deondra has $420 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax. She buys a new bicycle for $236. 31. She buys 2 bicycle reflectors for $3. 07 each and a pair of bike gloves for $34. 75. She plans to spend some or all of the money she has left to buy new biking outfits for $59. 50 each. Write and solve an inequality which can be used to determine oo, the number of outfits Deondra can purchase while staying within her budget
Deondra can purchase 2 amount outfits for $59.50 each within her budget of $420.
$420 - ($236.31 + $3.07 + $3.07 + $34.75) ≥ $59.50oo
$147.00 ≥ $59.50oo
$147.00 ÷ $59.50 ≥ oo
2.46 ≥ oo
Deondra can purchase 2 outfits.
Deondra has $420 to spend at a bicycle store for some new gear and biking outfits. She first buys a new bicycle for $236.31, then she buys two bicycle reflectors for $3.07 each and a pair of bike gloves for $34.75. In order to determine how many outfits she can purchase while staying within her budget, an inequality can be written and solved. The inequality is $420 - ($236.31 + $3.07 + $3.07 + $34.75) ≥ $59.50oo. This can be simplified to $147.00 ≥ $59.50oo. Dividing both sides of the inequality by $59.50, we get $147.00 ÷ $59.50 ≥ oo. After solving, this simplifies to 2.46 ≥ oo. Since Deondra can only purchase a whole outfit, the answer becomes 2 outfits. Therefore, Deondra can purchase 2 outfits while staying within her budget.
Learn more about amount here
https://brainly.com/question/28970975
#SPJ4
Specify the number of ways to perform the task described. Give your answers using P(n, r) or C (n, r) notation. Eleven magazines are competing for six identical awards for excellence in journalism. No magazine can receive more than one award. The number of ways to perform the task is ________.(Do not evaluate.)
The number of ways to perform the task is 462.
Combinations:In mathematics, a combination is a way of selecting items from a larger set in which the order of selection does not matter.
For example, if you are selecting a team of 3 people from a group of 10 people, the order in which you select the team members does not matter.
Here we have
Number of magazines = 11
Number of awards = 6
Using the combination formula,
No of ways to select 6 magazines out of 11 = C(11, 6)
= 11! / (6! × (11-6)!) = 11! / (6! × 5!) = 462
Therefore,
The number of ways to perform the task is 462.
Learn more about Combinations at
https://brainly.com/question/29520004
#SPJ1
Hey I need help with these questions ASAP
We find the following conclusions concerning the telegraph wire:
Case 1: The perimeter of the circle is equal to 20π centimeters.
Case 2: The extra length for the telegraph wire is equal to 10π meters.
How to determine the perimeter of a circleIn this problem we find two cases where the perimeter of a circle must be computed for a telegraph wire, this can be done by using the following formula:
s = 2π · r
Where:
s - Perimeterr - RadiusNow we proceed to determine the perimeter for each case.
Case 1: (Please notice that diameter is twice the radius)
s = 2π · (20 / 2)
s = 20π cm
The circle has a perimeter of 20π centimeters.
Case 2: (The Earth has a radius of 6371000 meters)
Δs = 2π · (6371005 - 6371000)
Δs = 2π · 5
Δs = 10π m
An extra length of 10π meters is required for the telegraph wire.
To learn more on circumferences: https://brainly.com/question/4268218
#SPJ1
Which of the following is an irrational number?
which equation represents a tangent function with a domain of all real numbers such that where n is an integer?
The tangent function is defined as the ratio of the sine function to the cosine function. It is periodic with a period of pi and has vertical asymptotes at odd multiples of pi/2. An equation for a tangent function with a domain of all real numbers and n as an integer is given by the following equation:
y = tan(x + n(pi))
The tangent function is defined as the ratio of the sine function to the cosine function, and it is periodic with a period of pi. It has vertical asymptotes at odd multiples of pi/2.
The tangent function can be represented by the following equation:
y = tan(x)
Where x is the angle measured in radians.
If we want to shift the graph of the tangent function by a certain amount, n, in the horizontal direction, we can use the following equation:
y = tan(x + n(pi))
Where n is an integer.
For example, if n = 2, then the graph of the tangent function would be shifted 2pi units to the left, and the equation would be:
y = tan(x - 2pi)
If n = 3, then the graph of the tangent function would be shifted 3pi units to the left, and the equation would be:
y = tan(x - 3pi)
And so on for any integer value of n.
To know more about tangent function: https://brainly.com/question/29117880
#SPJ11
Use the place-value charts to round each decimal to the nearest
whole number, nearest tenth, and nearest hundredth. 67.822
Nearest whole number:
Nearest tenth:
Nearest hundredth:
Answer:
------------
Step-by-step explanation:
Thanks...........
Consider the expression 1/2 parentheses to a + 1 a + 3 complete the two description of parts of an expression the entire explosion is the product of blank on its own parentheses to a + 1/8
The expression 1/2(2a + 1)(a + 3) can be described as the product of two expressions as 1/2 and (2a + 1)(a + 3).
The entire expression is the product of two smaller expressions, namely 1/2 and (2a + 1)(a + 3).
The second expression, (2a + 1)(a + 3), is a product of two binomials. Each binomial contains two terms separated by a plus sign.
The first binomial, 2a + 1, has a coefficient of 2 in front of the variable a and a constant term of 1. The second binomial, a + 3, has a coefficient of 1 in front of the variable a and a constant term of 3.
To simplify the expression 1/2(2a + 1)(a + 3), we can distribute the 1/2 to both terms inside the parentheses, resulting in the expression (a+1/2)(a+3).
The expression can be further simplified by multiplying the two binomials together, resulting in the quadratic expression a² + 7/2a + 3/2.
To know more about expression here
https://brainly.com/question/14083225
#SPJ4
Complete Question:
Consider the expression 1/2(2a + 1)(a + 3)
Complete 2 descriptions of the parts of the expression.
You get brainilest if the answer is right.Do what the picture says!!!!
Answer:
67.12
Step-by-step explanation:
Area of 1/2 circle = 1/2πr^2 = 1/2(3.14)(4^2) = 1/2(3.14)(16) = 25.12
Area of top rectangle = 8 x 3 = 24
Area of bottom rectangle = 3 x 6 = 18
Total area : 25.12 + 24 + 18 = 67.12
Answer:Hello how are you
Step-by-step explanation:
William bought a 0. 5 liter bottle of liquid plant food he uses 40 milliliters a week what measurements are given
One bottle of liquid plant food is enough for at least 12 weeks, and potentially a bit more.
William uses 40 milliliters of liquid plant food per week, so to find out how much plant food he needs for 12 weeks, we can simply multiply the weekly usage by the number of weeks:
Amount of plant food needed for 12 weeks = 40 milliliters/week x 12 weeks = 480 milliliters
So, William needs 480 milliliters of liquid plant food for 12 weeks.
Since the bottle of liquid plant food, William purchased contains 0.5 liters or 500 milliliters of liquid plant food, we can see that one bottle is enough for 12 weeks since 480 milliliters is less than the total amount of liquid plant food in the bottle.
In fact, we can calculate how many weeks one bottle of liquid plant food will last William by dividing the total amount of liquid plant food in the bottle by the amount used per week:
Time to use up the liquid plant food = (Total amount of liquid plant food) / (Amount used per week) = 500 ml / 40 ml/week ≈ 12.5 weeks
So, we can say that one bottle of liquid plant food is enough for at least 12 weeks, and potentially a bit more.
For more such questions on milliliters: brainly.com/question/29502712
#SPJ4
The correct question should be:
William bought a 0.5 -liter bottle of liquid plant food. He uses 40 milliliters each week? How much plant food does William need for 12 weeks? Is one bottle enough for 12 weeks?
Consider the following time series data. Using the naive method (most recent value) as the forecast for the next week, compu (a) mean absolute error
MAE=
(b) mean squared error
MSE =
(c) mean absolute percentage error (Round your answer to two decimal places.) ।
×
(d) What is the forecast for week 7 ?
The forecast for week 7 is 309
Given time series data for the problem is; Week 1Week 2Week 3Week 4Week 5Week 6Week 7Observed value220254280276297309Naive forecast220254280276297309Where, the forecast for the next week is the most recent value. It means that the forecast for week 7 is 309.The formula to calculate mean absolute error (MAE) is;$$\text{MAE}=\frac{1}{n}\sum_{i=1}^{n}|y_i-\hat{y}_i|$$Where, $n$ is the total number of observations, $y_i$ is the $i$th observed value, and $\hat{y}_i$ is the $i$th forecasted value by the naive method.MAE = $(1/7) \times (38+26+4+17+12+4+0)$ = 13.57Mean squared error (MSE) is given by;$$\text{MSE}=\frac{1}{n}\sum_{i=1}^{n}(y_i-\hat{y}_i)^2$$MSE = $(1/7) \times (38^2+26^2+4^2+17^2+12^2+4^2+0^2)$ = 3004.29Mean absolute percentage error (MAPE) is given by;$$\text{MAPE}=\frac{1}{n}\sum_{i=1}^{n}\left(\frac{|y_i-\hat{y}_i|}{y_i}\right)\times 100$$MAPE = $(1/7) \times [(38/220) + (26/254) + (4/280) + (17/276) + (12/297) + (4/309) + (0/309)] \times 100$MAPE = 5.17%Thus, (a) mean absolute error (MAE) is 13.57, (b) mean squared error (MSE) is 3004.29, (c) mean absolute percentage error (MAPE) is 5.17% and (d) the forecast for week 7 is 309.
Learn more about forecasted value
brainly.com/question/15173326
#SPJ4
What is a mixed number with the same denominator for 3 7/8
The improper fraction that is equivalent to 3 7/8 is 31/8.
A mixed number consists of a whole number and a proper fraction. In the case of 3 7/8, the whole number is 3 and the proper fraction is 7/8.
To convert a mixed number to an improper fraction, you need to first convert the whole number to a fraction by multiplying it by the denominator of the fraction in the mixed number. In this case, the denominator of the fraction is 8, so we multiply 3 by 8 to get 24.
Next, you add the numerator of the fraction to the result of the multiplication. In this case, the numerator is 7, so we add it to 24 to get 31.
3 7/8 = (3 x 8 + 7) / 8
= (24 + 7) / 8
= 31/8
Learn more about improper fraction here
brainly.com/question/15131952
#SPJ4
The given question is incomplete, the complete question is:
What is 3 7/8 as an improper fraction?
HELP HELP HELP
If possible,combine like terms to simplify the following expression.otherwise choose “simplified.”
The simplest form οf the expression (-5/2)+(4/5)x - 17x is (-5/2)-(81/5)x.
What is an expression?Mathematical expressions cοnsist of at least two numbers or variables, at least one math operation, and a sentence. It's possible to multiply, divide, add, or subtract with this mathematical οperation.
The term "like terms" in algebra refers tο terms that have the same variable raised tο the same power. Only the numerical coefficients can change in terms similar tο those of algebra. The algebraic expressions can be made simpler by cοmbining like terms, making it much simpler to determine the expressiοn's outcome.
The given expressiοn is
(-5/2)+(4/5)x - 17x
The like terms are (4/5)x and - 17x
Combine like terms:
= (-5/2)+(4 - 85/5)x
= (-5/2)+(- 81/5)x
= (-5/2) - (81/5)x
To learn more about the expression,
https://brainly.com/question/28978326
#SPJ1
Nine less than four times a nunber equals fithteen
The required number for given expression is a = -3/2
What are expression?Mathematical expressions consist of at least two numbers or variables, at least one math procedure, and a sentence. It's possible to multiply, divide, add, or subtract with this mathematical procedure. An expression's form is as follows: Expression: (Math Operator, Number/Variable, Math Operator)
According to question:We given that
Nine less than four times a number equals fithteen;'
Let the number is a.
So,
9 - 4a = 15
-4a = 6
a = 6/-4
a = -3/2
Thus, required number is a = -3/2
To know more about Expression visit:
brainly.com/question/30091997
#SPJ9
need help with multiple questions (and if you can, show your work, thanks):
1: Measure 8 tbsp. chocolate sauce and add 2 1/2 cups of milk.
2: Start with 1 3/4 cups of milk and add 2 1/2 tbsp. chocolate sauce.
3: Add 3 1/3 tbsp. chocolate sauce to 1 1/4 cups milk.
4: For every 1 cup of milk add 2 1/2 tbsp. of chocolate sauce.
5: Stir 1 tbsp. chocolate sauce into 2/3 cup milk.
With this query, no effort is necessary. measure the tbsp. of all items.
Is milk consumption healthy?A great source of both phosphorus and calcium, which are essential for the growth and upkeep of strong, strong teeth and bones, is milk. They lower the chance of developing osteoporosis and suffering broken bones later in life. Milk encourages strong bones.
1. Measure [tex]8[/tex] tbsp. chocolate sauce and add [tex]2\frac{1}{2}[/tex] cups of milk.
No work is required for this question. It is a simple instruction to measure out 8 tbsp. of chocolate sauce and add it to [tex]2\frac{1}{2}[/tex] cups of milk.
2. Start with [tex]1\frac{3}{4}[/tex] cups of milk and add [tex]2\frac{1}{2}[/tex] tbsp. chocolate sauce.
No work is required for this question. It is a simple instruction to start with [tex]1\frac{3}{4}[/tex] cups of milk and add [tex]2\frac{1}{2}[/tex] tbsp. of chocolate sauce.
3. Add [tex]3\frac{1}{3}[/tex] tbsp. chocolate sauce to [tex]1\frac{1}{4}[/tex] cups milk.
No work is required for this question. It is a simple instruction to add [tex]3\frac{1}{3}[/tex]tbsp. of chocolate sauce to [tex]1\frac{1}{4}[/tex] cups of milk.
4. For every 1 cup of milk add [tex]2\frac{1}{2}[/tex] tbsp. of chocolate sauce.
No work is required for this question. It is a simple instruction to add [tex]2\frac{1}{2}[/tex] tbsp. of chocolate sauce for every [tex]1[/tex] cup of milk.
5. Stir [tex]1[/tex] tbsp. chocolate sauce into [tex]\frac{2}{3}[/tex] cup milk.
No work is required for this question. It is a simple instruction to stir 1 tbsp. of chocolate sauce into [tex]\frac{2}{3}[/tex] cup of milk.
To know more about milk visit:
https://brainly.com/question/28586503
#SPJ1
In which number does the digit 3 have a value that is 10 times as great as the value of the digit 3 in 143,728?
A. 137,982
B. 142,398
C. 292,389
D. 392,097
In number 292,389 the digit 3 have a value that is 10 times as great as the value of the digit 3 in 143,728.
What is a number?
A number is a mathematical value used for counting or measuring or labelling objects. Numbers are used to performing arithmetic calculations.
The value of a digit depends on its place value in a number. For example, the digit 3 in the number 143,728 has a value of 3 x 1,000 = 3,000 because it is in the thousands place.
Let's call the number we are looking for "x". We want to find a number where the value of the digit 3 is 10 times as great as the value of the digit 3 in 143,728.
The value of the digit 3 in x is 10 times the value of the digit 3 in 143,728, so we can set up the equation:
3 x place value of 3 in x = 10 x 3,000
Simplifying this equation, we get:
3 x place value of 3 in x = 30,000
Dividing both sides by 3, we get:
place value of 3 in x = 10,000
So the digit 3 in x must be in the ten thousands place. Now we can eliminate choices A and B, because they do not have a digit 3 in the ten thousands place.
Checking the remaining choices, we find that only choice C has a digit 3 in the ten thousands place, with a value of 3 x 10,000 = 30,000. Therefore, the answer is:
C. 292,389
To learn more about Numbers, click on the link:
https://brainly.com/question/26856218
#SPJ1
Given m∠LON\qquad m \angle LON m∠LON m, angle, L, O, N is a straight angle. M∠LOM=4x+30∘\qquad m \angle LOM = 4x + 30^\circ m∠LOM=4x+30 ∘ m, angle, L, O, M, equals, 4, x, plus, 30, degrees m∠MON=8x+90∘\qquad m \angle MON = 8x + 90^\circ m∠MON=8x+90 ∘ m, angle, M, O, N, equals, 8, x, plus, 90, degrees Find m∠MONm\angle MON m∠MON m, angle, M, O, N : OO O LL L NN N MM M ∘{}^{\circ} ∘ degrees Show Calculator Stuck?Watch a video or use a hint. Report a problem
Using the definition of a straight angle, the measure of angle MON is calculated as: 130°.
What is a Straight Angle?A straight angle is an angle that measures exactly 180 degrees. It is a flat angle, which means it has no curvature and looks like a straight line.
Therefore, we have:
m∠LOM + m∠MON = 180 [straight angle is equal to 180 degrees]
Substitute:
4x + 30 + 8x + 90 = 180
Solve for x:
12x + 120 = 180
12x = 180 - 120
12x = 60
x = 60/12
x = 5
m∠MON = 8x + 90° = 8(5) + 90
m∠MON = 130°
Learn more about straight angle on:
https://brainly.com/question/24024505
#SPJ1
Complete Question:
Given
m∠LON is a straight angle.
m∠LOM = 4x + 30°
m∠MON = 8x + 90°
Find m∠MON
The figure below is a net for a right rectangular prism.
What is the surface area of the right rectangular prism, in square inches?
schoology
will give branliest if answer IS RIGHT
Answer:
586 square inches
Step-by-step explanation:
[tex]2((11(7) + 12(7) + 12(11))[/tex]
[tex]2(77 + 84 + 132)[/tex]
[tex]2(293) = 586[/tex]