shanti wrote the predicted values for a data set using the line of best fit y = 2.55x – 3.15. she computed two of the residual v
2 answers:
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the width of Yun's area model is 7x units or ( x-2 )units .
<u>Step-by-step explanation:</u>
Here we have , Yun was trying to factor 7x^2-14x. He found that the greatest common factor of these terms was 7x and made an area model: What is the width of Yun's area model. Let's find out:
We know that area of rectangle :
⇒ .........(1)
Now , According to question we have
⇒
⇒
Comparing this equation to equation (1) we get that :
⇒ or ,
Therefore , the width of Yun's area model is 7x units or ( x-2 )units .
Answer:
(a)
(b)
Step-by-step explanation:
Take of of each term.
For Question a
Given that x = 3, y = 4, and dx/dt = 5.
For Question b
Given that x = 4, y = 3, and dx/dt = -5.