pacpac1172
23.10.2020 •
Mathematics
Systems:Question 5
Which of the following matrices best represents the given
system of equations?
x+3y + 3z=-12
-3x-y-z=4
-x+2y=-7
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Ответ:
2236.5
Step-by-step explanation:
The regression equation for predicting hiker's elevation is
y=9.06x+651.
Here x is the number of minutes.
We wish to estimate hiker's elevation after 175 minutes. For this purpose we put x=175 in the predicted regression equation.
y=9.06(175)+651
y=1585.5+651
y=2236.5
Thus, the hiker's elevation after 175 minutes is 2236.5 feet.