sef4kt

21.11.2019 • 

Mathematics

Causal models select one: a. provide evidence of a causal relationship between an independent variable and the variable to be forecast. b. occur whenever all the independent variables are previous values of the same time series. c. relate a time series to other variables that are believed to explain or cause its behavior. d. use the average of the most recent data values in the time series as the forecast for the next period.

Ответ:

100888

30.06.2022

Mathematics

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If you would like to know the solutions to the quadratic equation, you can find this using the following steps:

3 * (x - 4)^2 = 75
3 * (x^2 - 8x + 16) = 75     /3
x^2 - 8x + 16 = 25
x^2 - 8x + 16 - 25 = 0
x^2 - 8x - 9 = 0
(x - 9) * (x + 1) = 0
1. x = 9
2. x = -1

The correct result would be x = −1 and x = 9.

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