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kiruha [24]
3 years ago
14

When a time series appears to approximately have consistent percentage differences from observation to observation, the appropri

ate model to fit is the:
A. quadratic trend.
B. linear trend.
C. exponential trend.
D. ARIMA.
Mathematics
1 answer:
ololo11 [35]3 years ago
6 0

Answer: option B

Step-by-step explanation:

Suppose you take a measure for each 5 seconds in a given observation, and the thing you are observing seems to change in the same amount in each meassure. This may mean that you are observing a linear relationship of the form y = a*x + b

Then, the simpler way to study this data set is by fiting with a linear equation.

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Rosa bought 1 pound of cashews and 2 pounds of peanuts for $10. At the same store, Sabrina bought 2 pounds of cashews and 1 poun
Valentin [98]

Answer:

The solutions are x=4, y=3. Cashews are $4 per pound and Peanuts are $3 per pound.

Step-by-step explanation:

let x = cashews

let y = peanuts

x + 2y = 10 - rosa's purchase

2x + y = 11 - sabrina's purchase

subtract 2x to isolate 'y'

y = 11 - 2x

x + 2(11 - 2x) = 10

x + 22 - 4x = 10 (Use the distributive property.)

-3x = -12

x = 4.00

Plug this into the original equations to find "y"

2(4) + y = 11

8 + y = 11

y = 3

4 + 2y = 10

2y = 6

y = 3

the solutions are: x = 4. y = 3.

5 0
3 years ago
Describe distributive property
IRINA_888 [86]

Answer:

To “distribute” means to divide something or give a share or part of something. According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is thirty plus ten times five minus forty five divided by five
Zielflug [23.3K]
The answer would be 71
8 0
4 years ago
By selling a chair for $372, Daisy loses 7%. At what price must she sell it to gain 10%.​
serious [3.7K]

Answer: $440

Step-by-step explanation:

Given selling price = $ 372

Loss % = 7%

We know, cost price = selling price × 100/100 - loss%

Therefore, cost price = 372 × 100/100 - 7

= 372 × 100/93

= $400

Now cost price = $400

Gain% = 10%

Therefore, selling price = (100 + gain%)cost price/100

= (100 + 10)400/100

= 110 × 4

= $440

5 0
3 years ago
Which inequality is the same as 7-2/b<5/b
kati45 [8]

Answer:

0 < b < 1

Step-by-step explanation:

I did the math and double checked on wolfram Alfa and it’s right hope this helps

6 0
2 years ago
Read 2 more answers
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