Answer:
If you didn’t understand what the person previous of me said. You’re going to do what is in parenthesis first and then continue from the left. If you need to draw the expression out and after that add together the pieces that are the same. To me it looks like it’s already simplified since there isn’t any pieces that are the same that you can add together if I’m not mistaken. Hope this could help. Your are welcome in advance. Stay Safe ‼️ :)
Step-by-step explanation:
Answer:
a. There are 12 observations from the resulting data set.
b. This is an analytic study. It compares the flow rates through a solenoid valve based on three factors at four different levels.
Step-by-step explanation:
Observations of the dependence of flow rate
Factors Armature Spring Bobbin
Lengths Load Depth
Levels
Low 1 1 1
Moderate 1 1 1
High 1 1 1
Extreme 1 1 1
Total observations 4 4 4
Number of observations = 12
b) Whereas enumerative studies are statistical studies carried out to draw a conclusion on a process or a condition, analytic studies are statistical studies that compare two or more groups or sets of data to improve future performance. The focus of an analytic study is on the process rather than the condition. Enumerative studies tend to explain, evaluate, and describe the condition of the dataset.
Answer:
x = 8
Step-by-step explanation:
small triangle is similar to larger one
set up a proportion: <u> 9 </u> = <u> x + 4 </u>
9+12 x+4+2x
<u> 9 </u> = <u> x+ 4 </u> cross-multiply: 9(3x + 4) = 21(x + 4)
21 3x + 4 27x + 36 = 21x + 84
6x + 36 = 84
6x = 48
x = 8