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omeli [17]
3 years ago
7

Write an algebraic expression for each situation. a. 7 more than a number b. Twice a number

Mathematics
1 answer:
Alex17521 [72]3 years ago
5 0

Step-by-step explanation:

a- 7 + X

b- 2x is the equation for these terms I think so

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The null hypothesis in the Durbin-Watson test is always that there is a. negative autocorrelation. b. no autocorrelation. c. eit
Kamila [148]

Answer:

b. no autocorrelation.

Step-by-step explanation:

The Durbin-Watson test assumes that

H0:ρ=0

HA:ρ≠0

p=0 is a statement for the null hypothesis that assumes that the error term in one period is not correlated to the error term in the previous period.

The Durbin-Watson test is used in regression analysis to test for autocorrelation. The results from the test would always range from 0 to 4. A value of less than 2.0 indicates positive autocorrelation. A value of 2.0 indicates no autocorrelation, and a value of 2.0 to 4.0 indicates negative autocorrelation.

3 0
3 years ago
coach Park's car averages 33 miles per gallon of gasoline how many gallons of gas does he need for the trip? justify you answer
sladkih [1.3K]
Since we don't know the length of the trip, we can't find an exact answer. 

However, we can write an expression for it. First, we let, T, represent the total number of miles for the trip.

Now, just divide T by 33. So our expression is T/33.

If you know the total miles of the trip, just divide it by 33 and you will have the answer.
4 0
3 years ago
Find the five arithmetic means between -18 and 36
Andreas93 [3]
Yeah it really be like that sometimes, you gotta try girl
5 0
3 years ago
Maria used a number line to find 12 ÷ 4.
aleksandrvk [35]

Answer:

12 divided by 4 is 3, this is how::

Step-by-step explanation:

            ------ .(-4)------- .(-4) ---------.(-4)

<---------------------------------------------------->

0  1  2  3  4  5  6  7  8  9  10  11  12

hope this made sense

8 0
3 years ago
Read 2 more answers
6+7=10<br>13+8=18<br>32+21=32<br>11+34=0<br>31+03=?​<br>process please
Stella [2.4K]

Answer:

6+7=13

13+8=21

32+21=52

11+34=46

31+03=34

Step-by-step explanation:

im not sure in the 31+03

4 0
2 years ago
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