Answer:
1e+21
Step-by-step explanation:
I believe this the answer
Please help with this problem.
Answer:
i'm pretty sure the answer is A
Step-by-step explanation:
we roll two six-sided dice, one with sides 1, 2, 2, 3, 3, 4 and the other with sides 1, 3, 4, 5, 6, 8. what is the pmf of the sum?
The pmf of the sum when rolling these two dice is as follows:
Sum | Probability
-----|------------
2 | 1/36
3 | 1/18
4 | 1/36
5 | 1/18
6 | 1/18
7 | 1/18
8 | 1/18
9 | 1/18
10 | 1/18
11 | 1/18
12 | 1/36
The pmf (probability mass function) of the sum when rolling two six-sided dice can be calculated by determining the probability of each possible sum.
To find the pmf, we need to consider all the possible outcomes when rolling the two dice. We will calculate the probability for each sum and then normalize the probabilities to add up to 1.
Let's list all the possible sums and their corresponding probabilities:
- The sum can be 2 when both dice show a 1. The probability of this is (1/6) * (1/6) = 1/36.
- The sum can be 3 when one die shows a 1 and the other die shows a 2. There are two possible combinations: (1, 2) and (2, 1). The probability of each combination is (1/6) * (1/6) = 1/36. So, the total probability for a sum of 3 is 2 * (1/36) = 1/18.
- The sum can be 4 when one die shows a 2 and the other die shows a 2. The probability of this is (1/6) * (1/6) = 1/36.
- The sum can be 5 when one die shows a 2 and the other die shows a 3. There are two possible combinations: (2, 3) and (3, 2). The probability of each combination is (1/6) * (1/6) = 1/36. So, the total probability for a sum of 5 is 2 * (1/36) = 1/18.
- The sum can be 6 when one die shows a 2 and the other die shows a 4. There are two possible combinations: (2, 4) and (4, 2). The probability of each combination is (1/6) * (1/6) = 1/36. So, the total probability for a sum of 6 is 2 * (1/36) = 1/18.
- The sum can be 7 when one die shows a 3 and the other die shows a 4. There are two possible combinations: (3, 4) and (4, 3). The probability of each combination is (1/6) * (1/6) = 1/36. So, the total probability for a sum of 7 is 2 * (1/36) = 1/18.
- The sum can be 8 when one die shows a 3 and the other die shows a 5. There are two possible combinations: (3, 5) and (5, 3). The probability of each combination is (1/6) * (1/6) = 1/36. So, the total probability for a sum of 8 is 2 * (1/36) = 1/18.
- The sum can be 9 when one die shows a 3 and the other die shows an 8. There are two possible combinations: (3, 8) and (8, 3). The probability of each combination is (1/6) * (1/6) = 1/36. So, the total probability for a sum of 9 is 2 * (1/36) = 1/18.
- The sum can be 10 when one die shows a 4 and the other die shows a 5. There are two possible combinations: (4, 5) and (5, 4). The probability of each combination is (1/6) * (1/6) = 1/36. So, the total probability for a sum of 10 is 2 * (1/36) = 1/18.
- The sum can be 11 when one die shows a 4 and the other die shows an 8. There are two possible combinations: (4, 8) and (8, 4). The probability of each combination is (1/6) * (1/6) = 1/36. So, the total probability for a sum of 11 is 2 * (1/36) = 1/18.
- The sum can be 12 when one die shows a 8 and the other die shows an 8. The probability of this is (1/6) * (1/6) = 1/36.
Now, let's add up all the probabilities:
(1/36) + (1/18) + (1/36) + (1/18) + (1/18) + (1/18) + (1/18) + (1/18) + (1/18) + (1/18) + (1/36) = 1/2
Therefore, the pmf of the sum when rolling these two dice is as follows:
Sum | Probability
-----|------------
2 | 1/36
3 | 1/18
4 | 1/36
5 | 1/18
6 | 1/18
7 | 1/18
8 | 1/18
9 | 1/18
10 | 1/18
11 | 1/18
12 | 1/36
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Complete the statement that describes a transformation that takes the lower left triangle to the upper right triangle.
The difference between the monthly high
and low temperatures was less than 27°
Fahrenheit. The monthly low temperature
was
-2° Fahrenheit. Determine the possible
monthly high temperature. Then interpret
the solution.
The possible monthly high temperature is less than 25°.
What is the possible monthly high temperature?It's important to note that temperature simply means the degree of hotness and the coldness that a particular medium has.
In this situation, the difference between the monthly high and low temperatures was less than 27° Fahrenheit and monthly low temperature
was -2° Fahrenheit. Therefore, the monthly high will be:
High - Low < 27
High - (-2) < 27
High + 2 < 27
High < 27 - 2
High < 25
The interpretation means that the temperature is less than 25°F.
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Calculating the Number of Periods [LO4] You expect to receive $39,000 at graduation in two years. You plan on investing it at 10 percent until you have $174,000. How long will you wait from now? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) Period years
You would need to wait approximately 51.33 years from now to grow your initial investment of $39,000 to $174,000 at an interest rate of 10% per year.
To calculate the number of periods (years) required to grow an initial investment to a desired future value, we can use the formula for compound interest:
FV = PV * \((1 + r)^n\)
Where:
FV is the future value
PV is the present value (initial investment)
r is the interest rate per period
n is the number of periods
In this case:
PV = $39,000
FV = $174,000
r = 10% per year
Let's calculate the number of periods (years):
FV = PV * \((1 + r)^n\)
174,000 = 39,000 * \((1 + 0.10)^n\)
Divide both sides by 39,000:
4.4615 = \((1.10)^n\)
Take the logarithm of both sides to solve for n:
log(4.4615) = n * log(1.10)
n ≈ log(4.4615) / log(1.10)
n ≈ 2.1270 / 0.0414
n ≈ 51.33 (rounded to two decimal places)
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please help me solve this geometry proof i’ll mark brainliest
BC will be congruent to AD under the C.P.C.T rule (corresponding parts of congruent triangles.)
What is triangle congruency?Triangle congruence: Two triangles are said to be congruent if their three corresponding sides and their three corresponding angles are of identical size.
You can move, flip, twist, and turn these triangles to produce the same effect. When relocated, they are parallel to one another.
Two triangles are congruent if they satisfy all five conditions for congruence.
They include the right angle-hypotenuse-side (RAHS), angle-side-angle (ASA), angle-angle-side (AAS), side-side-side (SSS), and angle-side-angle (SSS) (RHS).
So, in the given △DAB and △DCB:
AC = AC = Common
∠DAC = ∠BAC = AC is the angle bisector
∠DCA = ∠BCA = AC is the angle bisector
Then, △DAB ≅ △DCB under the ASA congruency rule,
Then, BC will be congruent to AD under the C.P.C.T rule (corresponding parts of congruent triangles.)
Therefore, BC will be congruent to AD under the C.P.C.T rule (corresponding parts of congruent triangles.)
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PLEASE HELP ME OUT
Answer: D. 32/x
Step-by-step explanation: To find how many desks are in EACH row we need to DIVIDE 32 by x, so the correct equation is 32/x or the last answer choice.
Hope this helps!
Mark Brainliest if you want!
Answer:
32/x
Step-by-step explanation:
32 desks in x rows
like, for example, let's say x = 8 (8 rows)
32/8 = 4 so four desks per row
If 4 rectangles were put together to form a shape with a perimeter of 88.then what is the breadth of each recangle
The breadth of each rectangle is 11 units.
Let's consider that each rectangle has a length of l and breadth of b. We have been given that the perimeter of the shape that is formed by putting together the 4 rectangles is 88 units. We know that, the perimeter of a rectangle is given by the formula 2(l + b).
Therefore, the perimeter of the shape is given by the formula: P = 2(l + b) + 2(l + b) = 4(l + b)
From the given information, we know that the perimeter of the shape is 88.
Therefore,4(l + b) = 88
Dividing both sides of the equation by 4, we get: l + b = 22
We have found the relationship between the length and breadth of each rectangle.
Now, we need to find the value of the breadth of each rectangle.
We know that there are 4 rectangles placed side by side to form the shape.
Therefore, the total breadth of all 4 rectangles put together is equal to the breadth of the shape.
Hence, we can find the breadth of each rectangle by dividing the total breadth by the number of rectangles.
Let's denote the breadth of each rectangle as b'.
Therefore, b' = Total breadth / Number of rectangles
b' = (l + b + l + b) / 4b' = (2l + 2b) / 4b' = (l + b) / 2
We have found that the sum of the length and breadth of each rectangle is equal to 22 units.
Therefore, the breadth of each rectangle is half the sum of the length and breadth of each rectangle.
Substituting this value in the above equation, we get:b' = (l + b) / 2b' = 22 / 2b' = 11
Therefore, the breadth of each rectangle is 11 units.
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Write the equation of a circle where the endpoints of a diameter are (4,9) and (4,-3).
The equation of a circle having endpoints of diameter as (4,9) and (4,-3) is (x - 4)² + (y - 3)² = 36.
The "center" of circle is called as midpoint of diameter.
The "x-coordinate" of "mid-point" is = (4+4)/2 = 4, and
The "y-coordinate" of "mid-point" is = (9+(-3))/2 = 3.
So, center of circle is (4,3),
The radius of circle is half the length of the diameter, which is distance between two endpoints of diameter. We find distance using distance formula:
⇒ distance = √((x₂ - x₁)² + (y₂ - y₁)²), where (x₁,y₁) and (x₂,y₂) are "end-points" of diameter.
⇒ distance = √((4 - 4)² + (9 - (-3))²)
⇒ √(144) = 12.
So, radius is 6.
The equation of circle with center (h,k) and radius "r" is : ⇒ (x - h)² + (y - k)² = r²,
Substituting the values
We get,
⇒ (x - 4)² + (y - 3)² = 6²,
⇒ (x - 4)² + (y - 3)² = 36,
Therefore, the equation of the circle is (x - 4)² + (y - 3)² = 36.
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Mr Cooper’ claroom had 5 table. There were 4 tudent at each table. Mr Garcia’ claroom had 3 more tudent than Mr Cooper’ claroom
Mr. Garcia's classroom had 23 students.
Let's denote the number of students in Mr. Cooper's classroom as C and the number of students in Mr. Garcia's classroom as G.
Given that Mr. Cooper's classroom had 5 tables with 4 students at each table, we can write:
C = 5 * 4 = 20
It is also given that Mr. Garcia's classroom had 3 more students than Mr. Cooper's classroom, so we can write:
G = C + 3
Substituting the value of C from the first equation into the second equation, we get:
G = 20 + 3 = 23
Therefore, Mr. Garcia's classroom had 23 students.
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Solve the equation 3x + 4y = 16 for x.
O A x V 16
B. x=3(16-4)
O c. x = 16 - 4y
O D. x. 18 AV
3x-4y=16
add 4y to both sides
3x=4y+16
divide both sides by 3
x=(4y+16)/3
explain how to use a graph of the function f(x) to find f(3)
Answer:
Just find the coordinate at the point where the x-coordinate is 3
Step-by-step explanation:
F(x) is just another term for Y. The variable of X is the value that you input into the f(x), which just stands for a function. Since the value that they asked for was 3, you know that they inputted the value of 3 as x. Just look where the coordinate at the point where the x-coordinate is 3 to find the answer.
Answer:
Sample Response: For f(3), the input is 3 and you are looking for the output. To determine the function's value when x = 3, go to the value of 3 on the x-axis and then locate the graph for that value of x. Determine the value of y from the y-axis at that location on the graph.
Step-by-step explanation:
answer on edge2020
the series 9/ 10 − 9 /12- 9/ 14 − 9 /16 -9 /18 −....... can be rewritten as [infinity] (−1)n − 1
The series 9/10 - 9/12 + 9/14 - 9/16 + 9/18 - ... can be rewritten as the sum of an infinite series with the formula Σ[(-1)ⁿ-¹ * 9/(8+n*2)], where n starts from 1 and goes to infinity.
We can derive this formula by following these steps-
1. First, we can notice that the numerators are always 9 and the denominators are increasing by 2 each time (10, 12, 14, 16, ...).
2. We can rewrite the denominator as 8 + n*2, where n starts at 1 (8 + 1*2 = 10, 8 + 2*2 = 12, ...).
3. The signs alternate between positive and negative. This can be represented by (-1)^(n-1), where n starts at 1 (so the first term is positive).
4. Combine these elements into the formula: (-1)^(n-1) * 9/(8+n*2).
5. Write the series as the sum of an infinite series using the sigma notation:
Σ((-1)ⁿ-¹ * 9/(8+n*2)), where n starts from 1 and goes to infinity.
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An order of brown rice and quinoa weighs 17 pounds and costs $54.
Brown rice: $2.00 per pound
Quinoa: $4.50 per pound
How many pounds of brown rice and quinoa are in this order?
8 ounce of brown rice and 9 ounce quinoa sold.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
Brown rice: $2.00 per pound
Quinoa: $4.50 per pound
let the brown rice sold x ounces
and, let the Quinoa sold be y ounces
So, the equations are:
x + y= 17
2x+ 4.5y= 54
2( 17- y) + 4.5y= 54
34 - 2y + 4.5y= 54
2.5y= 20
y= 20/2.5
y= 8 ounce
and, x= 17-8= 9 ounce
Hence, 8 ounce of brown rice and 9 ounce quinoa sold.
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Wish me luck
I have a math final next hour any pointers
Answer:
gooOoOood laCCccckK
Answer:
thats really cool
Step-by-step explanation:
good luck :)
please give brainly
Suppose you spend 3/5 of your monthly budget on food and 1/4 on bus fare. Food and bus fare total $212.50/month. What is your monthly budget?
what rationale is correct for the nusre to empty a hemovac woudn suction device when it is half full
A nurse should empty a Hemovac wound suction device when it is half full to ensure proper functioning and prevent discomfort or injury to the patient due to the device becoming too heavy.
The rationale for a nurse to empty a Hemovac wound suction device when it is half full is to ensure the device is functioning correctly and to prevent it from becoming too heavy and potentially causing discomfort or injury to the patient.
When a Hemovac wound suction device is half full, it may start to lose suction, which can result in less efficient drainage of fluid from the wound site. By emptying the device, the nurse can ensure that the device is functioning correctly and that the suction pressure is maintained.
Additionally, allowing the device to become too full can make it heavy and uncomfortable for the patient, potentially causing discomfort or injury to the wound site. Therefore, emptying the device when it is half full can help prevent these complications and ensure that the patient remains comfortable throughout the healing process.
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Identification. Read carefully the following statements. Provide the best word that describes each statement. 1. This pattem in nature are also exhibited in the external appearances of the animals. 2. This kind of pattern is exhibited by objects when their similar parts are regularly arranged around a central axis and the pattern looks the same after a certain amount of rotation. 3. These are curved patterns made by series of circular shapes revolving around a central point 4. This kind of pattern is exhibited by objects which do not change its size and shape even if it moved to another location. 5. Describes as an exact correspondence of form and constituent configuration on opposite sides of a dividing line or plane or about a contor or an axis. It indicates that you can draw an imaginary line across an object and the resulting parts are mirror images of each other.INSTRUCTION: Determine the value of term under the Fibonacci sequence. Let Fib (n) be the nth term of
the Fibonacci sequence, with Fib (1) = 1, Fib (2) = 1, Fib (3) = 2, and so on. 1.(3pts)- Find Fib (8) 2.(3pts)- Find
Fib (19) 3.(4pts)- If Fib (22) = 17, 711 and Fib (24) = 46, 368, what is Fib (23)?
1. The word that describes a pattern in nature that is also exhibited in the external appearances of animals is "symmetry."
Symmetry refers to the balanced arrangement of parts or elements. In nature, many animals display symmetry in their body structure, such as butterflies with their symmetrical wings.
2. The word that describes a pattern exhibited by objects when their similar parts are regularly arranged around a central axis and the pattern looks the same after a certain amount of rotation is "rotational symmetry."
Rotational symmetry occurs when an object can be rotated and still maintain its original appearance. For example, a circle has rotational symmetry because it looks the same after any amount of rotation.
3. The word that describes curved patterns made by a series of circular shapes revolving around a central point is "spiral."
Spirals can be seen in various aspects of nature, like the arrangement of petals in a sunflower or the shape of a seashell.
4. The word that describes a pattern exhibited by objects that do not change their size and shape even if they are moved to another location is "translation symmetry."
Translation symmetry means that an object can be moved without altering its characteristics. For instance, a rectangle has translation symmetry because it remains the same even if it is shifted horizontally or vertically.
5. The word that describes an exact correspondence of form and constituent configuration on opposite sides of a dividing line or plane or about a contour or an axis is "reflection symmetry" or "mirror symmetry."
Reflection symmetry means that an object can be divided into two equal halves, and each half is a mirror image of the other. For example, the letter "A" exhibits reflection symmetry when it is divided vertically down the middle.
Now, moving on to the second part of the question, which involves finding values in the Fibonacci sequence:
1. Fib(8) = 13
2. Fib(19) = 4181
3. Fib(23) = 28,657
1. To find Fib(8), we can use the Fibonacci sequence. Fib(1) = 1, Fib(2) = 1, and each subsequent term is the sum of the previous two terms. So, Fib(3) = Fib(1) + Fib(2) = 1 + 1 = 2.
Similarly, Fib(4) = 2 + 1 = 3, Fib(5) = 3 + 2 = 5, Fib(6) = 5 + 3 = 8, and Fib(7) = 8 + 5 = 13. Therefore, Fib(8) is 13.
2. To find Fib(19), we can continue using the Fibonacci sequence. By applying the same pattern of adding the previous two terms, we find that Fib(19) is 4181.
3. Given that Fib(22) = 17,711 and Fib(24) = 46,368, we can determine Fib(23) by subtracting the known terms
. Since Fib(23) = Fib(24) - Fib(22),
we have Fib(23) = 46,368 - 17,711 = 28,657.
In summary:
1. Fib(8) = 13
2. Fib(19) = 4181
3. Fib(23) = 28,657
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Convert 99% to a decimal
Answer:
Ya the other guys correct
Step-by-step explanation:
(only answering so u can give the other guy brainlyist)
Determine whether the following statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. Because there are 3 feet in one yard, there are also 3 square feet in one square yard. Question content area bottom Part 1 Choose the correct answer below. A. The statement is true. B. The statement is false. Because there are 3 feet in one yard, there are 27 square feet in one square yard. C. The statement is false. Because there are 3 feet in one yard, there are 6 square feet in one square yard. D. The statement is false. Because there are 3 feet in one yard, there are 9 square feet in one square yard.
The correct option regarding the scale factor and the statement in this problem is given as follows:
D. The statement is false. Because there are 3 feet in one yard, there are 9 square feet in one square yard.
How to obtain the correct scale factor?The scale factor between the length dimensions of the yard are given as follows:
3 feet = 1 yard.
(as these length dimensions are given in yards).
Then for the square units, the correct scale factor is found applying the proportion as follows:
(3 feet)² = (1 yard)².
9 feet squared = 1 square yard.
Hence the statement given in this problem, that because there are 3 feet in one yard, there are also 3 square feet in one square yard, is false, and the correct option is given by option D.
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find the eigenvalue of a matrix in r^2 which reflexs a point across a line through the origin
To find the eigenvalue of a matrix in R^2 which reflects a point across a line through the origin, we first need to construct the matrix.
Let the line through the origin be represented by the unit vector u = [cosθ, sinθ] where θ is the angle between the positive x-axis and the line. The matrix A which reflects a point across this line is given by:
A = 2(uu^T) - I
where uu^T is the outer product of u with itself and I is the identity matrix. Note that u^T is the transpose of u.
To find the eigenvalue λ of this matrix, we need to solve the characteristic equation:
det(A - λI) = 0
where I is the identity matrix of size 2. Substituting A into this equation and expanding the determinant, we get:
det(2(uu^T) - I - λI) = 0
det(2(uu^T - (1+λ)I)) = 0
Using the fact that det(cA) = c^n det(A) for any constant c and matrix A of size n, we can simplify this to:
det(uu^T - (1+λ)/2 I) = 0
Expanding the determinant, we get:
(λ+1/2)(λ-3/2) = 0
Therefore, the eigenvalues of A are λ = -1/2 and λ = 3/2.
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Help please! Check my answer to see if it's right.
Answer:
yes
Step-by-step explanation:
You have the correct intercepts
Mariam is going to invest $3,000 and leave it in an account for 13 years. Assuming the interest is compounded monthly, what interest rate, to the nearest hundredth of a percent, would be required in order for Mariam to end up with $6,200?
Answer:
8.21%
Step-by-step explanation:
r = (1/t)(A/P - 1)
t = 13
A = 6200
P = 3000
1 6200
r = (-------) ((------------) - 1))
13 3000
1 31
r = (-------) ( ------ - 1)
13 15
1 16
r = (-------) ( ------ )
13 15
16
r = -------- = 0.0820512
195
r = 0.0820512 x 100 = 8.20512
r ≈ 8.21%
I hope this helps!
Answer:
Step-by-step explanation:
Compounded Monthly:
Use A=P(1+r/n)^nt
A=6200
P=3000
t=13
n=12
Plug in and simplify:
1. Multiply 12 times 13
2. Divide out the 3000
3. Raise both sides to the 1/156 power to cancel out the exponent
4. Subtract 1 from both sides
5. Multiply by 12 on both sides
R should equal 0.0559716
That is about 5.60%
5.60%
A survey was conducted to investigate whether alcohol consumption and smoking are related. In a random
sample of 300 smokers, 196 said they had consumed alcohol at least once in the past week. In an
independent random sample of 300 non-smokers, 159 said they had consumed alcohol in the past week. If
P, is the proportion of smokers in the population who have had a drink in the past week and P is the
corresponding proportion of non-smokers, then a test of the hypotheses H, P, -P-0 against the two-sided alternative produces a test statistic of z=3.07 and a P-value of 0.002. If we had instead analyzed these results with a chi-square test of homogeneity, which of the following would be the test statistic and P-value?
a-942, P-value = 0.002
b. -942, P-value-0.004
-3.07, P-value - 0.004
d. -1.75, P-value = 0.002
e-1.75, P-value=0.004
e) The test statistic and P-value for the chi-square test of homogeneity would be -1.75 and 0.004, respectively.
A chi-square test of homogeneity is a useful tool for comparing two or more categorical variables. In this case, the two variables are smoking (smokers and non-smokers) and alcohol consumption (those who had consumed alcohol in the past week and those who hadn't).
The chi-square statistic is calculated by finding the difference between the observed and expected frequencies of the two groups and squaring it. The expected frequencies are found by multiplying the sample size by the overall probability of success (in this case, drinking alcohol).
The P-value is then calculated based on the chi-square statistic and the degrees of freedom (in this case, one). In this case, the chi-square statistic is -1.75 and the P-value is 0.004.
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A forecaster would like to use the 2-period moving average method on data below to make forecasts. Before doing this, she would like to test the performance of this method on past data. Which of the following could represent past forecasts for this method? (In the options below note that F1 represents the forecast for time period 1, and so on.)
Period 1 2 3 4 5 Actual Sales 5582 5122 5755 6320 5153
a. F1 = 5582 F2 = 5352 F3 = 5438.5 F4 = 6037,5 F5-5736.5 b. F1 = 5586.4 F2 = 5586.4 F3 = 5586.4 F4 = 5586.4 F5-5586.4 c. F2=5352 F3=5352 F4 = 5348.5 F5 - 6037.5 d. F3=5352 F4 = 5438.5 F5 = 6037.5 e. F3 = 5438.5 F4 = 6037.5 F5 = 5736.5 ________ encompasses the irregular changes in a time series that are not caused by any other component - Long-term trend - Cyclical effect - Random variation - Seasonal effect
The correct option for the past forecasts using the 2-period moving average method is:
A. F1 = 5582 F2 = 5352 F3 = 5438.5 F4 = 6037.5 F5 = 5736.5
Step-by-step explanation:
1. To calculate F2, take the average of Period 1 and Period 2 actual sales: (5582 + 5122) / 2 = 5352.
2. For F3, average Period 2 and Period 3 actual sales: (5122 + 5755) / 2 = 5438.5.
3. For F4, average Period 3 and Period 4 actual sales: (5755 + 6320) / 2 = 6037.5.
4. For F5, average Period 4 and Period 5 actual sales: (6320 + 5153) / 2 = 5736.5.
"Random variation" encompasses the irregular changes in a time series that are not caused by any other component. Some common example of random variation is coin toss. It is independent of the effects of systematic biases. In general, the larger the sample size is, the lower the random variation is of the estimate of a parameter. As random variation decreases, precision increases.
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assume that t is a linear transformation. find the standard matrix of t. t: ℝ2→ℝ2 first reflects points through the line x2=−x1 and then reflects points through the origin.
the standard matrix of the linear transformation T: ℝ² → ℝ², which first reflects points through the line x₂ = -x₁ and then reflects points through the origin, is:
[ -1 0 ]
[ 0 1 ]
To find the standard matrix of the linear transformation T: ℝ² → ℝ², we can determine how the basis vectors of ℝ² transform under the given transformation.
The standard basis vectors of ℝ² are:
e₁ = (1, 0) (corresponding to the x-axis)
e₂ = (0, 1) (corresponding to the y-axis)
First, let's apply the reflection through the line x₂ = -x₁:
For e₁ = (1, 0), the reflection through the line x₂ = -x₁ maps it to (-1, 0).
For e₂ = (0, 1), the reflection through the line x₂ = -x₁ maps it to (0, 1).
Next, let's apply the reflection through the origin:
For (-1, 0), the reflection through the origin keeps it the same (-1, 0).
For (0, 1), the reflection through the origin keeps it the same (0, 1).
Now, we have the transformed basis vectors:
T(e₁) = (-1, 0)
T(e₂) = (0, 1)
The standard matrix of the linear transformation T is constructed by placing the transformed basis vectors as columns:
[ -1 0 ]
[ 0 1 ]
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HELP PLEASE
The members of a bowling team score from 159 to 221. Their average score is 172. A
new member with an outlyng score of 279 joins the team.
Which statement describes how the new member's score will affect center and spread of the bowling team?
The new member's score will decrease the center and spread of the bowling team.
The new member's score will decrease the center but increase the spread of the bowling team.
The new member's score will increase the center and spread of the bowling team.
The new member's score will increase the center but decrease the spread of the bowling team.
Answer:
c
Step-by-step explanation:
I did the test and got it correct
The correct for the new member's score will affect center and spread of the bowling team is,
⇒ The new member's score will increase the center and spread of the bowling team.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The members of a bowling team score from 159 to 221. Their average score is 172.
And, A new member with an outlying score of 279 joins the team.
We know that;
When we add new member with an outlying score of 279 joins the team, the value of average is increase.
Thus, The correct for the new member's score will affect center and spread of the bowling team is,
⇒ The new member's score will increase the center and spread of the bowling team.
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in the market for milk portrayed in this figure, which price yields an efficient outcome?
The efficient outcome in the market for milk portrayed in the figure would be where the marginal cost (MC) curve intersects with the demand (D) curve, which is at a price of $3 per gallon.
To determine which price yields an efficient outcome in the market for milk, we need to find the equilibrium price. The equilibrium price is where the supply and demand curves intersect, which represents the point at which the quantity demanded equals the quantity supplied.
At this price, the quantity of milk produced and consumed will be at the socially optimal level where the marginal benefit (MB) equals the MC, resulting in a Pareto efficient outcome. It is important to note that this assumes no externalities or market failures are present in the market for milk.
1. Identify the supply and demand curves in the figure. The demand curve typically slopes downward, while the supply curve slopes upward.
2. Locate the point where the supply and demand curves intersect.
3. Find the price corresponding to this point on the vertical axis (price axis).
The equilibrium price found in step 3 is the price that yields an efficient outcome in the market for milk.
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Given f(x) and g(x) = f(x) + k, use the graph to determine the value of k.
Graph of f of x and g of x. f of x equals 1 over 3 x minus 3 and g of x equals 1 over 3 x plus 1.
2
3
4
5
Answer:
find out how many units higher g(x) is compared to f(x).
g(x) is 3 units higher than f(x)
Since the graph is 3 units higher, the value of k must be 3.
Step-by-step explanation:
ok i honestly hope i answerd this correctly because im terrible at reading math
Find the volume v of the solid obtained by rotating the region bounded by the given curves about the specified line. x = 6 3y , x = 0, y = 3; about the y-axis
According to the question The volume of the solid obtained by rotating the region about the \($y$\)-axis is \($0$\).
To find the volume of the solid obtained by rotating the region bounded by the curves \(x = 6 - 3y$, $x = 0$, and $y = 3$\) about the \($y$\)-axis, we can use the method of cylindrical shells.
The height of each cylindrical shell is the difference between the two curves, which is given by \($(6 - 3y) - 0 = 6 - 3y$\)
The radius of each cylindrical shell is the distance from the \($y$\)-axis, which is simply \($y$\).
The differential volume of each cylindrical shell is then given by \(dV = 2\pi y(6 - 3y) \, dy$.\)
To find the total volume, we integrate the differential volume from \(y = 0$ to $y = 3$:\)
\($V = \int_{0}^{3} 2\pi y(6 - 3y) \, dy$\)
To solve the integral, let's integrate the expression step by step:
\($V = \int_{0}^{3} 2\pi y(6 - 3y) \, dy$\)
Expanding the expression, we have:
\($V = \int_{0}^{3} 12\pi y - 6\pi y^2 \, dy$\)
Integrating term by term, we get:
\($V = \left[6\pi \left(\frac{1}{2}y^2\right) - 2\pi \left(\frac{1}{3}y^3\right)\right] \bigg|_{0}^{3}$\)
Simplifying further:
\($V = \left[3\pi y^2 - \frac{2}{3}\pi y^3\right] \bigg|_{0}^{3}$\)
Plugging in the limits of integration:
\($V = \left[3\pi \cdot 3^2 - \frac{2}{3}\pi \cdot 3^3\right] - \left[3\pi \cdot 0^2 - \frac{2}{3}\pi \cdot 0^3\right]$\)
Simplifying:
\($V = \left[27\pi - 27\pi\right] - \left[0 - 0\right]$\)
\($V = 0$\)
Therefore, the volume of the solid obtained by rotating the region about the \($y$\)-axis is \($0$\).
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