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NARA [144]
3 years ago
13

(30 Points) Simplify Each Expression And Show Steps/Work

Mathematics
1 answer:
Nutka1998 [239]3 years ago
8 0

1) (2i-4)-(6i+9) = 2i-4-6i-9 = -4i-13

2) (-3+8i)+(3-8i) = -3+8i+3-8i = 0+0i = 0

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Step-by-step explanation:

For this case we define the dependent variable as Y and the independent variable X. We assume that we have n observations and that means the following pairs:

(x_1, y_1) ,....,(x_n,y_n)

For this case we assume that we want to find a linear regression model given by:

\hat y = \hat m x +\hat b

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\hat m represent the estimated slope for the model

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e_i = y_i -\hat y_i , i=1,...,n

So the best option for this case is:

d. residual

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MrRa [10]

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