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Hunter-Best [27]
3 years ago
9

Do stain-polyurethane mixes protect wood as well as stain and polyurethane applied in separate coats? Five types of wood will be

used, with two boards of each type of wood. One board of each type of wood (randomly selected) will have the stain-polyurethane mix applied to it, and the other will have stain and polyurethane applied in separate coats. Each board will have water poured on it, and the amount of water retained will be measured. Which significance test is most appropriate
Mathematics
1 answer:
Marina CMI [18]3 years ago
8 0

Answer:

A matched-pair t-test for a mean difference

Step-by-step explanation:

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The table below shows four systems of equations:
Ede4ka [16]
To determine which system of equations would have the same solution, we evaluate each system of equations.

System 1 4x − 5y = 2, 3x − y = 8
x = 38/11
y = 26/11

<span>System 2 4x − 5y = 2, 3x − 2y = 1
x = 1/7
y = -2/7

System 3 4x − 5y = 2, 3x − 8y = 4
x = -4/17
y = -10/17

System 4 4x − 5y = 2, 10x − 9y = 4
x = 1/7
y = -2/7

</span><span>
Therefore, the correct answer is option 3. </span><span>System 2 and system 4 are equal, because the second equation in system 4 is obtained by adding the first equation in system 2 to two times the second equation in system 2.

     4x− 5y = 2 2( 3x − 2y = 1)
-----------------------    10x - 9y = 4</span>
4 0
3 years ago
Find the equation of the linear function represented by the table below in slope-intercept form.
Naily [24]

Question: Where is the y2? Please be more specific!

3 0
2 years ago
Whats 19,174 rounded to the nearest thousand
satela [25.4K]

19,000

Step-by-step explanation:

round down if the hundred is above 5 than round up one number

4 0
3 years ago
What is a factor in whole numbers and fractions?
harkovskaia [24]
Mixed fraction is what it is called
Mixed fraction factor: 1(1/2)
Normal fraction factor:4/2
U can use 4/2 or 2
6 0
3 years ago
Which of these absolute values is the greatest? a. |140| b. |-104| c. |104| d. |-20
Wewaii [24]

Answer: a

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5 0
2 years ago
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