Answer:
(x+9)(x+9)=25
Step-by-step explanation:
x^2+18x+81=25
or x^2+(9x+9x)+81=25
or x^2+9x+9x+81=25
or x(x+9)+9(x+9)=25
:: (x+9) (x+9) =25
a. esteban-perez and j. m. morales ´ , distributionally robust stochastic programs with side information based on trimmings, mathematical programming, (2022).
Distributionally robust stochastic programs with side information based on trimmings
This is a research paper whose authors are Adrián Esteban-Pérez and Juan M. Morales.
Abstract:
We look at stochastic programmes that are conditional on some covariate information, where the only knowledge of the possible relationship between the unknown parameters and the covariates is a limited data sample of their joint distribution. We build a data-driven Distributionally Robust Optimization (DRO) framework to hedge the decision against the inherent error in the process of inferring conditional information from limited joint data by leveraging the close relationship between the notion of trimmings of a probability measure and the partial mass transportation problem.We demonstrate that our technique is computationally as tractable as the usual (no side information) Wasserstein-metric-based DRO and provides performance guarantees. Furthermore, our DRO framework may be easily applied to data-driven decision-making issues involving tainted samples. Finally, using a single-item newsvendor problem and a portfolio allocation problem with side information, the theoretical findings are presented.Conclusions:
We used the relationship between probability reductions and partial mass transit in this study to give a straightforward, yet powerful and creative technique to expand the usual Wasserstein-metric-based DRO to the situation of conditional stochastic programming. In the process of inferring the conditional probability measure of the random parameters from a limited sample drawn from the genuine joint data-generating distribution, our technique generates judgments that are distributionally resilient to uncertainty. In a series of numerical tests based on the single-item newsvendor issue and a portfolio allocation problem, we proved that our strategy achieves much higher out-of-sample performance than several current options. We backed up these actual findings with theoretical analysis, demonstrating that our strategy had appealing performance guarantees.To learn more about probability, visit :
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The number of skiers, k, that visited a mountain one day was
8 less than 11 times the number of snowboarders, b, that
visited. Which equation represents the relationship between
the number of skiers and the number of snowboarders that
visited the mountain that day?
Answer:
k = 11b - 8 (easiest to understand)
extra:
k = -8 + 11b
or
11b = -8 - k
etc. ( anything mixing up the components of the equation ).
with regard to a regression-based forecast, the standard error of the estimate gives a measure of part 2 a. the time required to derive the forecast equation. b. the time period for which the forecast is valid. c. the variability around the regression line. d. the maximum error of the forecast.
The standard error of the estimate gives a measure of the variability around the regression line.
A regression line represents the relationship between an independent and a dependent variable in a statistical study. In this the standard error of the estimate represents the variation from the theoretical value which is on the regression line. So it gives the measure of the variability around the regression line. It is measured from the distance between the values on the regression line and the value of the estimate.
When the standard error is zero, the study is said to be perfect( which is rare in real cases). So a range of error of (0.8-0.9) is considered as acceptable. So to make the estimate precise, standard error should be the minimum.
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Please help me out!
Use the table. Write an equation for number of subscribers Jayden has during any given month. Use m to represent the number of months and j to represent number of subscribers. I don't know if this will help but he's also trying to get to 1000 subs. along with his friend Keiko.
I said it was J=8m+48 but that's probably very wrong..
Answer:
j = 8m + 48 is correct
Step-by-step explanation:
You see that the y-intercept where x is equal to is 48, and after one month it increases by 8, so we have j = 8m + 48. You were correct
Which expression is equivalent to (-7.5+21 1/4)+(-1/2)
Resuepstaa
179/4=
44,75
The function f is given in three equivalent forms. Which form most quickly reveals the vertex? A.f(x)=3(x+6)2−75 B.f(x)=3(x+1)(x+11) C.f(x)=3x^2+36x+33
Answer:f(x)=3x^2+36x+33
0,-75
Step-by-step explanation:
your welcome plus just got it
Simplify expression by combining like terms.
5m+18+15m+-24-4m
Answer:
16m - 6
General Formulas and Concepts:
Algebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define Expression
5m + 18 + 15m - 24 - 4m
Step 2: Simplify
Combine like terms (m): 16m + 18 - 24Combine like terms (Z): 16m - 6‼️HURYY UP PLEASE ‼️
(Points reflected over an Axis)
Point A is located at (4,1) on the coordinate plane. Point A is reflected over the x-
axis to create point A'. Point A' is then reflected over the y-axis to create point A".
What ordered pair describes the location of A"?
Answer:
(0,2)
Step-by-step explanation:
walter builds birdhouses. he spends $5 on the materials for each birdhouse. he can build one in 30 minutes. he is semi-retired but earns $8 per hour at the local hardware store. he can sell a birdhouse for $20 each.
Therefore, one birdhouse has an implicit cost of $4.
What is an Implicit Cost?
Any value that has previously came about however isn't always necessarily proven once more reported as a awesome object is called an implicit price. It stands for a marginal utility that develops whilst a enterprise devotes inner assets to a venture without receiving any direct payment for the usage of such resources.Figuring out implicit costs:
You ought to first decide the prices. you could add up the express expenses you're aware of:you may calculate the accounting earnings through deducting the explicit charges from the sales.To calculate the genuine economic profit, deduct both specific and implicit costs.Implicit cost is the price of a production factor that is owned by the producer. Walter might have made $4 in the 30 minutes it takes to make a birdhouse.
Therefore, one birdhouse has an implicit cost of $4.
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What is the slope of a line that is parallel to the line
shown on the graph?
-3
2.
O-1
}
54 -3 -2 -11
2 3 4 5
X
-2
-3
4
Answer: -3
Step-by-step explanation: -3 is equal to -3/1
Answer:
3
2.
O-1
}
54 -3 -2 -11
2 3 4 5
X
-2
-3
4
The graph shown represents a system of equations used to solve a polynomial inequality. If the polynomial expression must be greater than 50, which represents the solution set of the inequality? (–7, 0) U (2, ∞) (–7, –5.94) U (–2.469, 3.409) (–5.94, –2.469) U (3.409, ∞) (–5.94, –2.469) U (2, ∞)
Answer:c
Step-by-step explanation:
Answer:
C forsure i just did it just trying to help
Step-by-step explanation:
Solve for linear equations by substitution
3x - 2y = 9
y=2x-7
Determine whether the sequence appears to be an arithmetic sequence. If so, find the common difference and the next three terms in the sequence.
0, 10, 18, 25, 33, ...
A. yes
common difference: −9
next three terms: 24, 15, 6
B. not an arithmetic sequence
C. yes
common difference: 10
next three terms: 43, 53, 63
D. yes
common difference: 8
next three terms: 41, 49, 57
Answer:
B
Step-by-step explanation:
not an arithmetic sequence
d=18-10=8
d=25-18=7
d not equal
hope this helps
The sequence 0, 10, 18, 25, 33, ... is not an arithmetic sequence. Then the correct option is B.
What is an arithmetic sequence?In a Number-crunching Succession, the distinction between one term and the following is steady. Let a₁ be the first term and d be a common difference.
Then the nth term of the arithmetic sequence is given as,
aₙ = a₁ + (n - 1)d
The sequence is given below.
0, 10, 18, 25, 33, ...
The difference between two successive terms is given as,
⇒ 33 - 25
⇒ 8
⇒ 25 - 18
⇒ 7
The common difference is not the same.
Thus, the given sequence is not an arithmetic sequence. Then the correct option is B.
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is 2n = 2m + n given or proven
The given equation is 2n = 2m + n and the proof is n = 2m
What are linear equations?Linear equations are equations that have constant average rates of change. Note that the constant average rates of change can also be regarded as the slope or the gradient
How to evaluate the given equation?The equation is given as
2n = 2m + n
Subtract n from both sides of the equation
So, we have
-n + 2n = 2m + n - n
Evaluate the like terms
n = 2m
Hence, the given equation is 2n = 2m + n and the proof is n = 2m
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Bethany can type 600 words in 12 minutes. What is her typing rater in
words per minute?
Answer: 50 words per minute
Step-by-step explanation:
600÷12=50
Answer:
50 words per minute
Step-by-step explanation:
600/12=50
please help me with this math :)
Answer:
9.85 × [tex]10^{-1}[/tex]
Step-by-step explanation:
a number expressed in standard form is
a × [tex]10^{n}[/tex]
where 1 ≤ a < 10 and n is an integer
given
[tex]\frac{985}{1000}[/tex]
= 0.985
= 9.85 × [tex]10^{-1}[/tex]
What is the value of z in the equation 4z-15=25
Answer:
z=10
Step-by-step explanation:
4z - 15 =25
4z - 15+15 =25+15
4z=40
z=10
Select the physical components that enable data to travel across a network.
o connector
o access method
o cable
o circuit boards
o domain server
The correct option is (a) connectors. The elements that give data on the network a way to move between nodes. This covers network media, connectors, and network interface cards (NIC).
A message is a piece of data sent over the internet, but before a message is sent, it is divided up into smaller pieces called packets. Using Transport Control Protocol (TCP) and Internet Protocol (IP), these messages and packets move between sources (TCP).
The cables (coaxial, twisted pair, fiber optic, and telephone lines) connecting the various network hardware components, the network adapters used by computers connected to the network (hosts), and any concentrators, repeaters, routers, or bridges employed in the network make up the physical network. The term "physical connection" refers to the total number of trunk lines, complete circuits, and connections—including those made by wire, optics, radio signal, or other means—necessary to provide reasonably adequate telecommunications service among telecommunications providers.
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Solve each proportions:
1) 7/2 = a/5
2) 8/r = 9/7
3) 6/b = 7/5
PLEASE HELP!
Answer:
a= 17.5 r= 6 2/9 b=4 2/7
Step-by-step explanation:
Please give brainliest
Answer:
1) 17.5
Step-by-step explanation:
1) 7/2 = a/5. Remember doing the cross multiplication... here is how you do it. 7 a
– = —
2 5
cross multiply 7*5=2*a
35=2a divide two each side
a = 17.5
Now, try it on your own for 2 and 3
Solve.
x/2 + 8 = 14
x=
Find the Slope if the line that passes through each pair of points
Solve for x 2.3x-3.2+1.6x=.7x
Answer:
x=1
Step-by-step explanation:
Answer:
x = 1
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
2.3x −3.2 + 1.6x = 0.7x
2.3x + − 3.2 + 1.6x = 0.7x
(2.3x + 1.6x) + (−3.2 )= 0.7x (Combine Like Terms)
3.9x + −3.2 = 0.7x
3.9x − 3.2 = 0.7x
Step 2: Subtract 0.7x from both sides.
3.9x − 3.2 − 0.7x = 0.7x − 0.7x
3.2x − 3.2 = 0
Step 3: Add 3.2 to both sides.
3.2x − 3.2 + 3.2 = 0 + 3.2
3.2x = 3.2
Step 4: Divide both sides by 3.2.
x = 1
Hope this helps!!!!!
2. What is the slope? Explain your answer.
2 points
4
(2, 3)
2 +
4
-2.
2.
4 x
(2,-2)
Answer: Distance
5
Midpoint
(
2
,
0.5
)
Slope
−
I
n
f
∈
i
t
y
Tiger found no solution.
See steps
y intercept
I
n
f
∈
i
t
y
See steps
Midpoint= ((X1+X2)/2,(Y1+Y2)/2)
Find the x value of the midpoint
Xm=(X1+X2)/2
Xm=(2+2)/2=2
Find the Y value of the midpoint
Ym=(Y1+Y2)/2
Ym=(3+-2)/2=0.5
The midpoint is: (2,0.5)
Graphing the two points, midpoint and distance
P1 (2,3)
P2 (2,-2)
Midpoint (2,0.5)
The length of the black line is the distance between the points (5)
Step-by-step explanation:
Quadrilateral QRST is a square. If the measure of QR 3x-6 and TS is 6-x. Find the value of x.
Answer:
x = 3
Step-by-step explanation:
Since the quadrilateral QRST is a square, all sides are equal
Therefore QR must be equal to TS
3x - 6 = 6 - x
4x = 12
x = 3
Which diagram represents the following sets?
P=|xis an integer divisible by 2}: Q= (x|xis an odd integer; R =x|xis an integer divisible by 3}
Answer:
The answer is below
Step-by-step explanation:
An integer is a whole number which is either positive, negative or zero.
Given that:
P=(x | x is an integer divisible by 2}. An integer divisible by 2 can be represented by 2k, where k is an integer, hence:
P = (..., -6, -4, -2, 0, 2, 4, 6, ...)
Q= (x | x is an odd integer). An odd integer can be represented by 2k + 1, where k is an integer, hence:
Q = (..., -5, -3, -1, 1, 3, 5, 7, 9 ...)
R = (x | x is an integer divisible by 3). An integer divisible by 3 can be represented by 3k, where k is an integer, hence:
R = (..., -12, -9, -6, -3, 0, 3, 6, 9, ...)
From the above we can see that Q and P are disjoint set, that is P ∩ Q = 0
But P and R have common numbers (..., -6, 0, 6, 12,...) i.e. P ∩ R ≠ 0
Also Q and R have common numbers (..., -3, 3, 9,...) i.e. Q ∩ R ≠ 0
The question and answer is attached
Answer:
FIRSTTTTTT GRAPHHHH
By what number should you multiply the first equation to solve using elimination?
–3x – 2y = 2
–9x + 3y = 24
–3
6
–9
3
Answer:
3
Step-by-step explanation:
We would be eliminating -9x from the equations.
Thus, we need to make the (-3x) into (-9x) in the first equation.
-9x ÷ -3x = 3
After that, you should be able to solve the equations:
-3x - 2y = 2
Equation 1×3: -9x - 6y = 6
-9x + 3y = 24
10 points
The 4th grade is going on a field trip to Raleigh. 86 students and 10 adults are going. If
they are taking 3 buses, how many people will be on each bus?
38
20
10
32
Complete each statement using place value and the distributive property 8(42) = 8(40 + 2) = The product of 8 and 42 is
Answer:
the first box can be filled by,
[tex] = 8(40) + 8(2) \\ = 320 + 16 \\ = 336[/tex]
the second box can be filled by,
[tex]336[/tex]
Answer: The answers are 8(40+2)= 8(40) + 8(2). The second answer is “The product of 8 and 42 is 336.
Rhett works at a health-food store. He makes $7 dollars for every 1/2 hour at work. Which equation shows the relationship between the money Rhett makes,m, and the hours he works,h?
Answer:
m= 14h
Step-by-step explanation:
96 pencils come in a box. If 4 teachers share 3 boxes equally, how many pencils does each teacher receive?
Answer:
24
Step-by-step explanation:
if there are 4 teachers and they get the same amount it would be 96 divided by 4 I think
Answer:
72
Step-by-step explanation:
I did 96x3=288, 288 divided by 4= 72
HOPE THIS HELPS!