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babymother [125]
3 years ago
5

You are using an exponential smoothing model for forecasting. The running sum of the forecast error statistics (RSFE) is calcula

ted each time a forecast is generated. You find the last RSFE to be 34. Originally, the forecasting model used was selected because of its relatively low MAD of 0.4. To determine when it is time to re-evaluate the usefulness of the exponential smoothing model, you compute tracking signals. Which of the following is the resulting tracking signal?A) 85B) 60C) 13.6D) 12.9E) 8
Mathematics
1 answer:
faltersainse [42]3 years ago
7 0

Answer:

A)85

Step-by-step explanation:

Calculation for the resulting tracking signal

Using this formula

Tracking signal= Last forecast error statistics (RSFE) /Low MAD (Mean Absolute Deviation)

Let plug in the formula

Tracking signal=34/0.4

Tracking signal=85

Therefore the resulting tracking signal will be 85

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Naoya read a book cover to cover in a single session, at a rate of 555555 pages per hour. After 444 hours, he had 350350350 page
natali 33 [55]

Answer:

y=-55x+570

Step-by-step explanation:

The correct question is

Naoya read a book cover to cover in a single session, at a rate of 55 pages per hour. After 4 hours, he had 350 pages left to read.

Let y represent the number of pages left to read after x hours.

Complete the equation for the relationship between the number of pages left and number of hours.

Let

x -----> the time in hours

y ----> the number of pages left to read

we know that

The linear equation in point-slope  form is equal to

y-y1=m(x-x1)

In this problem we have

m=-55\frac{pages}{hour}  ----> is negative because the linear function is decreasing

point\ (4,350)

substitute

y-350=-55(x-4)

y-350=-55x+220

y=-55x+220+350

y=-55x+570

8 0
4 years ago
Can anyone tell me the correct answer of this. I already have it but I wanna make sure. please ​
Mamont248 [21]

Answer:

x = 44.3°

Step-by-step explanation:

Redrawing the triangle,

To obtain x, we can apply the trigonometric relation :

Sin x = opposite / hypotenus

Opposite side = 6.5

Hypotenus = 9.3

Sin x = 6.5/9.3

x = sin^-1(6.5 / 9.3)

x = 44.34

x = 44.3°

4 0
3 years ago
(2 + 3x)<br> 62<br> I need help my brother beats me up cause I don’t know jdjdjefjdjjdfjjddjjffjfj
Triss [41]

Answer:

x=20

Step-by-step explanation:

I hope this helps. Sorry if i'm wrong.

3 0
3 years ago
Camille is starting an exercise program. During the first week, she walked 3/4 mile every day. Every week she increased the dist
Oksanka [162]

Answer:

E

Step-by-step explanation:

Distance = 1/3(week -1) + ¾

= 1/3(7) + ¾

= 7/3 + 3/4

= 28/12 + 9/12

= 37/12 miles

4 0
3 years ago
Read 2 more answers
3(x+1)^(4/3)=48<br><br> how do i solve this?
IrinaK [193]
3(x+1)^{\frac{4}{3}}=48\\\\\frac{3(x+1)^{\frac{4}{3}}}{3}=\frac{48}{3}\\\\(x+1)^{\frac{4}{3}}=(x+1)^{(\frac{1}{3}*4)}=\sqrt[3]{(x+1)^{4}}=16\\\\(\sqrt[3]{(x+1)^{4}})^{3}=16^{3}\\\\(x+1)^4=4096\\\\\sqrt[4]{(x+1)^4}=\sqrt[4]{4096}=\pm8\\\\\\x+1=\pm8\\\\x+1=8\\x=7\\\\x+1=-8\\x=-9

Your answers are x = 7 and x = -9.
4 0
3 years ago
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