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2 years ago

What does first difference mean?

Mathematics

2 answers:

FromTheMoon [43]2 years ago

6 0

Hope I am giving you the answer which you need

Sunny_sXe [5.5K]2 years ago

4 0

Answer:

In statistics and econometrics, the first-difference (FD) estimator is an estimator used to address the problem of omitted variables with panel data. It is consistent under the assumptions of the fixed effects model. In certain situations it can be more efficient than the standard fixed effects (or "within") estimator.

First differences are the differences between consecutive y-‐values in tables of values with evenly spaced x-‐values. If the first differences of a relation are constant, the relation is _______________________________ If the first differences of a relation are not constant, the relation is ___________________________

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Melanie eats 1.5 pounds of cereal each week. Which model below best represents the number of pounds of cereal she eats in .5 wee

Katena32 [7]

For this case, the first thing we must do is define a variable.
We have then:
x: number of weeks
y: amount of cereal that Melanie eats
We now write the function that models the problem:
$y = 1.5x
$
Then, for 5 weeks we have:
$y = 1.5 (5)

y = 7.5 pounds$
Answer:
A model that best represents the number of pounds of cereal she eats is:
$y = 1.5x
$
For 5 weeks we have:
$y = 7.5 pounds$

5 0

3 years ago

A) Determine which amounts of postage can be formed using just 3-cent and 10-cent stamps.

RUDIKE [14]

wait i will take screen shot please bran-list

8 0

3 years ago

Translate the equation into a sentence

faltersainse [42]

Answer: 3/5t + 2 = 2 can be translated into a sentence.

That sentence can be: three fifths a number plus two is equal to two.

8 0

3 years ago

Use inductive reasoning to predict the next line in the pattern. Then perform the arithmetic to determine whether your conjectur

iren2701 [21]

Answer:

8(5) + 8(25) + 8(125) + 8(625) +8(3125)= 10(3125 - 1)=31240

Hence proved Conjecture is correct

L.H.S=R.H.S

Step-by-step explanation:

Consider the pattern:

8(5)=10(5-1)=40

8(5) + 8(25) = 10(25 - 1) =240

8(5) + 8(25) + 8(125) = 10(125 - 1) =1240

8(5) + 8(25) + 8(125) + 8(625) = 10(625 - 1)=6240

According to inductive reasoning next term of pattern will become:

8(5) + 8(25) + 8(125) + 8(625) +8(3125)= 10(3125 - 1)=31240

Checking whether conjecture is correct or not:

Consider L.H.S:

8(5) + 8(25) + 8(125) + 8(625) +8(3125)

40+200+1000+5000+25000

31240

R.H.S:

31240

Hence proved Conjecture is correct

L.H.S=R.H.S

7 0

3 years ago

B=3.c=7 and d=3 so what is <br> 2b^3 + C- d?

3241004551 [841]

Answer:

220

Step-by-step explanation:

2b^3+c-d

2(3)^3+7-3

6^3+7-3

216+7-3

223-3

220

3 0

3 years ago