Answer:
1). 8r + 7t
2). -48r² - 128rt + 20t²
3). 8r + 8t
NOTE: These are the most simplified form of each equation given, these might or might not me given in the answer choices, however these are correct.
Step-by-step explanation:
You just have to combine the similar values for each equation.
Hope this helps, good luck!
Answer:
it will take 7 nights
Step-by-step explanation:
Answer:
t =5
Step-by-step explanation:
2-16t=6(-3t+2)
Distribute
2-16t = -18t +12
Add 18t to each side
2-16t+18t = -18t+18t +12
2 +2t = 12
Subtract 2 from each side
2-2 +2t = 12-2
2t =10
Divide each side by 2
2t/2 =10/2
t =5
Answer:
Option B. Quadratic
Step-by-step explanation:
In a regression model, the value of tells us how accurately the model fits the data.
That closer the value of of 1 is, better is the model.
This can be used to compare what type of model is most convenient to use in some cases.
In this problem the attached table shows a comparison of the value of for 3 models
Linear
Quadratic
Exponential
Note that the value of that is closest to 1 is that which corresponds to the quadratic model.
Therefore the function that best fits the points is the quadratic