I disagree with the student because y = x/9 represents a proportional relationship
What is proportional relationship?
Proportional relationships are relationships between two variables where their ratios are equivalent
A proportional relationship can we written as follows:-
y = mx
Where 'y' is dependent variable, 'x' is independent variable, and 'm' is the slope or we can say 'm' is constant of proportionality.
'm' can take any value whether negative or positive, decimal or whole number. 'm' is a real number.
The given problem is y = x/9 and student says we can only multiply constant, and not divide. We disagree with this comment because m= 1/9 is correct.
So y = 1/9 x makes sense.
Hence, y = x/9 represents a proportional relationship.
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Find the missing values in the ratio table.
Answer:
Step-by-step explanation:
The second Yards box is:
3.33 repeating
The third Feet box is:
15
The fourth Feet box is:
21
Margo can purchase tile at a store for $0.79 per tile and rent a tile saw for $15. At another store she can borrow the tile saw for free if she buys tiles there for $1.29 per tile. How many tiles must she buy for the cost to be the same at both stores?
The number of tiles must she purchase for the expense to be something similar at the two stores will be 30.
What is the solution to the equation?The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.
Margo can buy tile at a store for $0.79 per tile and lease a tile saw for $15. At one more store, she can acquire the tile saw free of charge assuming she purchases tiles there for $1.29 per tile.
Let 'y' be the total cost and 'x' be the number of tiles. Then the equation is given as,
y = 0.79x + 15 ...1
y = 1.29x ...2
From equations 1 and 2, then we have
1.29x = 0.79x + 15
0.5x = 15
x = 30
The number of tiles must she purchase for the expense to be something similar at the two stores will be 30.
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The rectangular floor of a classroom is 30 feet in length and 36 feet in width. A scale drawing of the floor has a length of 5 inches. What is the area, in square inches, of the floor in the scale drawing?
The scale drawing's representation of the rectangle floor's circumference is 68 inches.
What is unitary method ?Area is the total amount of space that an object's shape or a flat (2-D) surface occupy.
Create a square on paper by using a pencil. Two dimensions make it up. A shape's area on paper is the space it takes up.
Imagine that your square is made up of smaller unit squares.
The area of a figure is equal to the number of unit squares required to completely cover the surface area of a particular 2-D shape. Square cms, square feet, square inches, square meters, etc. are a few common units for measuring area.
To get the area of the square figures presented below, draw unit squares with 1-centimeter sides. Therefore, the shape will be measured.
According to our question-
P = 2L + 2W
W = 5
P = 2L + 2(5) = 16
2L + 10 = 16
2L = 6
L = 3 ft
Hence, The scale drawing's representation of the rectangle floor's circumference is 68 inches.
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Find AE on the rhombus below when AD=4 x+2, DC=7 x-13 and BD=34 .
Note: Write your answer in simplest radical form. In the first blank put the number in front of the v. And in the second blank. put the number that is inside the . ** If there is no number in front of the v, enter a 1 in the blank **
The length AE of the rhombus is √195 units
How to determine the length AE of the rhombus?From the question, we have the following parameters that can be used in our computation:
AD = 4x + 2
DC = 7x - 13
BD = 34
All the four sides of a rhombus are congruent
This means that
DC = AD
Substitute the known values in the above equation, so, we have the following representation
7x - 13 = 4x + 2
Evaluate the like terms
3x = 15
Divide both sides by 3
x = 5
Substitute x = 5 in AD = 4x + 2
So, we have
AD = 4 x 5 + 2
AD = 22
The length AE of the rhombus is then calculated as
AE² = AD² - (BD/2)²
Substitute the known values in the above equation, so, we have the following representation
AE² = 22² - (34/2)²
Evaluate
AE² = 195
Take the square roots
AE = √195
Hence, the length is √195 units
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Kenneth is creating a chart to compare and contrast the different transformations of objects. He wants to show similarities and differences between translations, rotations, and reflections. In his chart, four statements are given. Which statements are true for a translation? Group of answer choices The distances between points on the polygon are preserved by the transformation. The orientation of points on the polygon is preserved by the transformation. The distance between corresponding points in the image and pre-image is constant. The angle measures between sides on the polygon are preserved by the transformation.
The statements that are true for a translation are:
The distances between points on the polygon are preserved by the transformation.
The distance between corresponding points in the image and pre-image is constant.
These statements are true for a translation because when an object is translated, it is shifted a certain distance in a certain direction. This means that the distances between points on the polygon remain the same and the distance between the corresponding points in the image and pre-image is constant.
Translation is the process of converting written, spoken, or visual information from one language into another. It is a complex process involving both linguistic knowledge and cultural understanding. Professional translators use a range of techniques to accurately convey the meaning of a text, including knowledge of grammar, syntax, and idiomatic expressions. Translators also take into account the cultural context of the text, ensuring that the translation reflects the same cultural references and nuances as the original. Translation can also refer to the conversion of DNA sequences from one form to another, such as from RNA to protein.
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Which fraction is equivalent to the given fraction model?
10/4
4/5
4/10
2/10
4/10 is the fraction that is equivalent to the given fraction model
What is an equivalent fraction ?
According to equivalent fractions, two or more fractions are considered to be equal if, following simplification, both provide the same fraction. Let's imagine that a/b and c/d are two fractions. If these fractions are simplified to produce comparable fractions, such as e/f, they are then equal to one another.
For instance, if we simplify 5/15, the resulting fraction is the same as 1/3, hence that is the equivalent fraction of 1/3.
The fractions with distinct numerators and denominators but the same value are said to be equivalent fractions. For instance, since 2/4 and 3/6 both equal the 12, they are identical fractions. An element of a whole is a fraction. The same amount of the whole is represented by equivalent fractions.
As in the given model 2 out of 5 blocks are in red color which means the equivalent fraction to the given model is 2/5 which is equal to 4/10
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Ian is going to invest in an account paying an interest rate of 5% compounded continuously. How much would Ian need to invest, to the nearest hundred dollars, for the value of the account to reach $108,000 in 6 years?
The amount of money that Ian would need to invest to be able to make up to $108,000 in 6 years with an interest rate of 5% compounded continuously would be = $80,000
What is interest rate?Interest rate is the rate at which an individual receives a particular amount of money due to an investment made over a period of time.
The current value of account(A) = $108,000
The number of years for investment (t)= 6 years.
The interest rate(r)= 5% = 0.05 (in decimal).
Using the formula, A = Pe^rt
108,000 = P e ^ 0.05× 6
108,000 = Pe^0.3
108,000 = P × 1.3499
P = 108,000/1.3499
P = $80,000 ( approximated to the nearest whole number)
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not sure why its saying 109 is wrong as its the max
The Class limit of the data is shown below.
What is Frequency?Frequency tables or charts are used to represent frequency distributions. Frequency distributions can display the proportion of observations or the actual number of observations that fall inside each range. The distribution is known as a relative frequency distribution in the latter case.
Given:
From the data the class limit will be
45 - 54
55 - 64
65 - 74
75 - 84
85 - 94
95 - 104
105 - 114
class Boundary
44.5 - 54.5
54.5 - 64.5
64.5 - 74.5
74.5 - 84.5
84.5 - 94.5
94.5 - 104.5
104.5 - 114.5
Midpoint
49.5
59.5
69.5
79.5
89.5
99.5
109.5
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16 x y can be 16y right????
Answer:
yes
Step-by-step explanation:
im assuming the "x" is multiplication so 16 x y is 16y
find the zeros f(x) = x 3 - 3x 2 – 5x +15
Answer:
x = ± [tex]\sqrt{5}[/tex] x = 3
Step-by-step explanation:
to find the zeros set f(x) = 0 , that is
x³ - 3x² - 5x + 15 = 0 ( factor the first/second and third/fourth terms )
x²(x - 3) - 5(x - 3) = 0 ← factor out (x - 3) from each term
(x - 3)(x² - 5) = 0
equate each factor to zero and solve for x
x - 3 = 0 ⇒ x = 3
x² - 5 = 0 ( add 5 to both sides )
x² = 5 ( take square root of both sides )
x = ± [tex]\sqrt{5}[/tex]
the zeros of f(x) are then
x = - [tex]\sqrt{5}[/tex] , x = [tex]\sqrt{5}[/tex] , x = 3
Use an open number line to find each difference:
93-36
Answer:
57
Step-by-step explanation: mental math.
what is 3/4 - 1/4ygkfmvkbkmbkvmmf
Answer:
1/2
Step-by-step explanation:
CAN SOMEONE HELP WITH THIS QUESTION?✨
The equation of the transformed graph will be y = -3(2ˣ) + 2.
What is the transformation of a graph?Transformation is rearranging a graph by a given rule it could be either increment of coordinate or decrement or reflection.
If we reflect any graph about y = x then the coordinate will interchange it that (x,y) → (y,x).
Suppose the equation of the given graph is y = A 2ˣ + k.
Substitute,(0,-1)
-1 = A 2⁰ + k
A + k = -1 (1)
Substitute, (1,-4)
-4 = A 2¹ + k
2A + k = -4
A + k/2 = -2 (2)
Subtract 1 - 2 as
k - k/2 = -1 + 2
k/2 = 1
k = 2
And, A = -2 - 2/2
A = -3
Thus y = -3(2ˣ) + 2
Hence "The equation of the transformed graph will be y = -3(2ˣ) + 2 ".
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URGENT!! ILL GIVE BRAINLIEST!!!! AND 100 POINTS!!!
Question 9
The approximate volume of Spaceship Earth is given as follows:
D. 2,350.878.75 cubic feet.
How to calculate the volume?We are given the circumference of Spaceship Earth, hence we can use it to obtain it's radius.
The circumference of a circle of radius r is given by the equation presented as follows:
C = 2πr.
At it's center, the Spaceship Earth is a circle, hence it's radius is calculated as follows, from it's circumference:
2πr = 518.1
r = 518.1/2π
r = 82.86 feet.
Now we consider that the entire Spaceship Earth has an spherical format, hence it's volume is given as follows:
V = (4/3)πr³.
Hence the volume in cubic inches is calculated as follows:
V = (4/3)π(82.86)³
V = 2,382,996.45 cubic feet.
Which is closest to option D.
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9. Bob Rowinski made a $4,000 deposit to a
savings account paying 1.6% annual interest
compounded semiannually. If he kept the money
on deposit for 6 months, what would his account
balance be after the interest payment is made?
The account balance of Bob Rowinski if he kept the money on deposit for 6 months is $4,032.00.
What is Bob Rowinski account balance the interest payment is made?The compound interest formula can be expressed as;
A = P(1 + r/n)^(n*t)
Where A is accrued amount, P is principal, r is interest rate, t is time elapsed.
Given the data in the question;
Principal P = $4,000Interest rate r = 1.6% = 1.6/100 = 0.016Compounded semi-annually n = 2Time t = 6 months = 0.5 yearAccrued amount A = ?Plug the given values into the above formula and solve for A.
A = P(1 + r/n)^(n*t)
A = $4000( 1 + 0.016/2 )^(2*0.5)
A = $4000( 1 + 0.008 )^(1)
A = $4000( 1.008 )
A = $4,032.00
Therefore, the accrued amount after half a year is $4,032.00
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if 1+1+10 x 34 what is it
Answer:
408
Step-by-step explanation:
1+1+10 equals 12, then do 12 x 34, which equals 408
A data set lists the grade point averages of 10th grade students. Which of the following charts could be used to display the data, and why?
Circle graph; because the data is categorical
Circle graph; because the data is numerical
Box plot; because the data is categorical
Box plot; because the data is numerical
The chart that could be used to display the data is given as follows:
Box plot; because the data is numerical.
What are numerical and categorical data?A data-set can be classified as either numerical or categorical, depending on the values assumed by the data, as follows:
If the values assumed by the data are numbers, then the data-set is numeric.If the values assumed by the data are labels, then the data-set is categorical.The correct charts for each type of data are given as follows:
Numeric: box plot.Categorical: circle graph.The grade point average assumes numeric values, hence it is a numeric data and should be shown on a box plot, meaning that the last option is correct.
The box plot will show the number of grades in each range of the grade point averages, for example, how many grades between 0 and 1, how many between 1 and 2, and so on.
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how much more would it cost a family of 5 to get the jets game ($105.66) than a Lions game ($79.19?
Answer:
The answer is 26.47.
Step-by-step explanation:
To get this answer, you simply need to subtract $105.66, by $79.19. You would get the answer of 26.47.
Step 1. [tex]$105.66 x 5 = 528.3[/tex]
Step 2. [tex]$79.19 x 5 = 395.95[/tex]
Step 3. [tex]528.3 - 395.95 = 132.35[/tex]
Thus, with all these steps it would cost $132.35 more to go to the jets game than to go to the lions game.
Construct a polynomial function with the following properties: fifth degree, 2 is a zero of multiplicity 4, −5 is the only other zero, leading coefficient is 4.
The required equation of the polynomial is p(x) = 4(x - 2 )⁵(x+5).
What is a polynomial?A polynomial in mathematics is an expression made up of coefficients and indeterminates and involves only the operations of multiplication, addition, subtraction, and non-negative integer exponentiation of variables.
Given the following properties: fifth degree, 2 is a zero of multiplicity 4, −5 is the only other zero, and the leading coefficient is 4.
The general form of the polynomial will be written as,
p(x) = 4(x - 2 )⁵(x+5).
Therefore, the required equation of the polynomial is p(x) = 4(x - 2 )⁵(x+5).
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( i only need number one and number 7 )
someone please i’m desperate i have so much work i need done by monday even if you only do one of them it is greatly appreciated
Answer:
1. x-intercept = (1, 0), y-intercept = (0, -2)
7. y + 4 = -6( x - 7)
Step-by-step explanation:
Question 1Given point-slope equation:
[tex]y-2=2(x-2)[/tex]
The x-intercept is when y = 0:
[tex]\begin{aligned}y=0\implies 0-2 &=2(x-2)\\-2&=2x-4\\2&=2x\\x&=1\end{aligned}[/tex]
The y-intercept is when x = 0:
[tex]\begin{aligned}x=0\implies y-2 &=2(0-2)\\y-2&=2(-2)\\y-2&=-4\\y&=-2\end{aligned}[/tex]
Therefore, the intercepts are:
x-intercept = (1, 0)y-intercept = (0, -2)To graph the equation, plot the intercepts and draw a straight line through them. (See attachment 1).
---------------------------------------------------------------------------------
Question 7[tex]\boxed{\begin{minipage}{5.8 cm}\underline{Point-slope form of a linear equation}\\\\$y-y_1=m(x-x_1)$\\\\where:\\ \phantom{ww}$\bullet$ $m$ is the slope. \\ \phantom{ww}$\bullet$ $(x_1,y_1)$ is a point on the line.\\\end{minipage}}[/tex]
Given:
m = -6(x₁, y₁) = (7, -4)Substitute the given slope and point (7, -4) into the formula to write the equation of the line in point-slope form:
[tex]\implies y-(-4)=-6(x-7)[/tex]
[tex]\implies y+4=-6(x-7)[/tex]
To graph the line, find the value of y when x = 6 and when x = 8:
[tex]\begin{aligned}x=6\implies y+4 &=-6(6-7)\\y+4 &=-6(-1)\\y+4&=6\\y&=2\end{aligned}[/tex]
[tex]\begin{aligned}x=8\implies y+4 &=-6(8-7)\\y+4 &=-6(1)\\y+4&=-6\\y&=-10\end{aligned}[/tex]
To graph the equation, plot the points (6, 2) and (8, -10) and draw a straight line through them. (See attachment 2).
----------------------------------------------------------------------------------------------
Please note that I have drawn the graphs using the same size 7x7 grids as shown in your question paper. If you wish to graph more of the line, please change the scale from those I have used.
1. 2x + y =
2. 3x + 2y =
3. 3y + 2x =
4. 10x + 4y + 2x =
5. 6y + 5x =
6. 7x + 4y =
The Question is based on the concept of Linear Equations and its answer will vary as the values of x and y varies
What is Linear Equations?
A linear equation is an algebraic equation in which the unknown variable is represented by a linear combination of terms and constants. It is a mathematical expression that can be written in the form ax + b = c, where a, b, and c are constants, and x is an unknown variable. Linear equations can be used to describe and solve a variety of real-world problems, such as finding the cost of a product or the distance between two points. Linear equations are also used in the fields of calculus, geometry, and physics.
Here we will just take value of x = 1 and y = 2 to show how this works
putting these values in all 6 Linear Equations we will get that
2x+y = 2(1)+2= 2+2 = 4
similarly in other 5 Question.
3x+2y = 7
3y + 2x = 8
10x + 4y + 2x = 10 + 8 + 2 = 20
6y + 5x = 12 + 5 = 17
7x + 4y = 7 + 8 = 15
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2. Use the Pythagorean Theorem to solve for c.
5 feet
18 feet
The value of C using Pythagorean Theorem when a equal 5feet and b equals 18feet then, C = 18.68
Pythagorean theoremIn mathematics, the Pythagorean theorem is a fundamental relation in Euclidean geometry between the three sides of a right triangle and is written as a^2 + b^2 = C^2
Using the Pythagorean theorem a^2 + b^2 = C^2
from the question we are given 5 feet and 18feet respectively
to find c we substitute the value into the equation
a^2 + b^2 = C^2
a= 5feet and b= 18 feet
5^2 + 18^2 =C^2
25 + 324 = C^2
349 =C^2
Square root both side
C= [tex]\sqrt{349}[/tex]
C = 18.68
Therefore, C in the equation is C = 18.68
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Using Pythagoras theorem the value of c is 18.68 feet
Pythagoras TheoremPythagoras theorem or Pythagorean theorem is an important topic in Mathematics, which explains the relation between the sides of a right-angled triangle. The sides of the right triangle are also called Pythagorean triples.
The value of c can easily be calculated using Pythagoras theorem which is given as;
c² = 5² + 18²
where;
c = hypothenusec² = 25 + 324
c² = 349
c = √349
c = 18.68 feet
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Solve the equation without using a calculator
[tex]\bf\\\\log^2x+log^2(x+10)=log^211\\\\log(x+10)\neq 0[/tex]
[tex]\bf\\(\ lgx=log_{10}x=logx\ )[/tex]
The solution to the logarithmic expression log²x + log²(x + 10) = log²11 is;
x = -11 and 1
How to solve logarithm expressions?We are given the logarithmic expression as;
log²x + log²(x + 10) = log²11
By the power rule of logarithm, we know that; log²x = 2log x
Thus;
log²x + log²(x + 10) = log²11 can be expressed as;
2log x + 2log (x + 10) = 2log 11
Divide through by 2 to get;
log x + log (x + 10) = log 11
We know from product rule of logarithm that log (ab) = log a + log b. Thus; log x + log (x + 10) = log 11 is;
log x(x + 10) = log 11
Log cancels out to get;
x² + 10x - 11 = 0
Using quadratic equation calculator gives;
x = -11 and 1
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Rewrite sin(x - 5π/4) in terms of sin(x) and cos(x)
SOMEONE PLEASE HELP ME ANSWER THIS QUESTION ASAP
Answer:
593
Step-by-step explanation:
sana makatulong hindi ko sure
An area near a forest was monitored by researchers. The first graph shows the change in the amount of ground shade during a five-year period. The second graph shows how the population of milkweed changed over the same period.
Which hypothesis is supported by the data?
A. The milkweed population is a biotic factor that decreased as the amount of sunlight, an abiotic factor, decreased.
B. The milkweed population is an abiotic factor that decreased as the amount of sunlight, a biotic factor, decreased.
C. The milkweed population is a biotic factor that decreased as the amount of sunlight, an abiotic factor, increased.
D. The milkweed population is an abiotic factor that decreased as the amount of sunlight, a biotic factor, increased.
Option A is correct.
What is increasing and decreasing graphs?
Generally speaking, we are aware that if something is growing, it is moving upward, and if it is shrinking, it is moving downward. As a result, if we talk about a function's graph, an increasing function is one that is moving upward, and a decreasing function is one that is moving downward.
From the graph, we infer that the sunlight, that is the shaded area increased in the given time. Which means that the sunlight was less.
From the milkweed population graph, we see that the milkweed population decreased over time.
Hence the most supportive hypothesis would be option A.
The milkweed population is a biotic factor that decreased as the amount of sunlight, an abiotic factor, decreases.
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Write a rule for the translation of ABC to A’B’C’
Answer:
Below
Step-by-step explanation:
x,y => ( +4 , -3) because it is shifted 4 units to the right and down 3 units
12. Which answer best describes the number of solutions for the following system of equations?
4x+y = 5
8x+2y = -6
A. 1 solution
B. 2 solutions
C. no solutions
D. infinitely many solutions
Answer: C. no solution
Step-by-step explanation:
4x+y=5 (1)
8x+2y=-6 (2)
Multiply both parts of the equation (1) by 2:
8x+2y=10
8x+2y=-6
The left-hand sides of the system of equations are equal to each other,
and the right-hand sides of the system of equations are not equal
to each other, hence, the system of equations has no solution
a) Work out the minimum number of hikers who could have walked between 6 miles and 17 miles.
b) Work out the maximum number of hikers who could have walked between 6 miles and 17 miles.
a) minimum of nine hikers might have covered the distance between 6 and 17 miles because it falls within the standard interval of 10 ≤ x ≤ 15.
b) The maximum no. of hikers who might have covered the distance between 6 and 17 miles is 19.
What do minimum and maximum value mean?
Rearrange the function using fundamental algebraic concepts to get the value of x when the derivative equals 0. This response gives the x-coordinate of the function's vertex, which is where the maximum or minimum will occur. To find the minimum or maximum, rewrite the solution into the original function.
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Evaluate the Riemann Sum for [tex]f(x)=sin^2x[/tex] if [tex]0\leq x\leq \frac{3\pi }{4}[/tex] with three equal subintervals, using right-hand endpoints as the sample points. Please help, need it for an exam
The value of f(x) =sin²x if 0≤x≤[tex]\frac{3\pi }{4}[/tex] using the Riemann sum is 0
How to use the Riemann sum to evaluate a function?By definition, the Riemann sum is a certain kind of approximation of an integral by a finite sum.
The given function is:
f(x) =sin²x if 0≤x≤3x/4
From the function, there are three sub intervals. The intervals include
n=3
a=0
b=[tex]\frac{3\pi }{4}[/tex]
The Riemann sum state that [tex]\frac{(b-a)}{n} =\frac{\pi }{4}[/tex]
C₁=[tex]\pi[/tex]/4
c₂=[tex]\pi[/tex]/2
C₃=[tex]\frac{3\pi }{4}[/tex]
The Riemann sum=[( [tex]3\pi[/tex]/4)-0]/3 = [tex]\pi[/tex]/4
When evaluated gives 12π=12π
Evaluate the function to get f(x)=0
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Using the time series data in the table, respond to the following items.Period Sales1 $ 1,001 2 1,129 3 841 4 1,044 5 1,012 6 703 7 682 8 712 9 646 10 686 11 909 12 469 13 566 14 488 15 688 16 675 17 303 18 381 Click here for the Excel Data Filed-1. Compute all possible forecasts using a trend forecasting model using simple linear regression? (Round your answers to 2 decimal places.)d-2. What is the MAD? (Round your answer to 2 decimal places.)d-3. What is the trend equation based on the regression analysis? (Round your answers to 2 decimal places.)e. What is the predicted annual change of industry sales? (Round your answer to 2 decimal places.)f. Predict sales for the next three periods. (Round your answers to 2 decimal places.)
Forecast Absolute is (d-1)
What is Forecast Absolute?
Absolute value refers to the fact that even a negative gap between the actual and anticipated demand turns positive. 25 divided by 4 equals 6.25, so. Since the demand error is not proportional, the MAD computation performs best when applied to a single product.
1026.62 25.62
990.38 138.62
954.15 113.15
917.91 126.09
881.67 130.33
845.44 142.44
809.20 127.20
772.97 60.97
736.73 90.73
700.49 14.49
664.26 244.74
628.02 159.02
591.78 25.78
555.55 67.55
519.31 168.69
483.07 191.93
446.84 143.84
410.60 29.60
(d-2) 111.15
(d-3) y = 1062.86 + (-36.24)*x
(e) decrease by 36.24
(f)
374.37
338.13
301.89
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