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The table and scatter plot shows the time spent studying...

Time spent in     Observed              Predicted                               Residual

studying (x)      midterm score   midterm score

12                            70                           60.5                                        9.5

18                             75                            83.34                                     -8.34

Step-by-step explanation:

Given, The equation of the line of best fit: (which gives the predicted score.)

Time spent in studying of 12 hours i.e. at x=12, observed y= 70

Predicted y =

Residual =Observed y - predicted y

= 70-60.5

= 9.5

Time spent in studying of 18 hours  i.e. at x=18, observed y= 75

Predicted y =

Residual = Observed y - predicted y

= 75-83.34

= -8.34

Time spent in     Observed              Predicted                               Residual

studying (x)      midterm score   midterm score

12                            70                           60.5                                        9.5

18                             75                            83.34                                     -8.34

answer: its because of life

step-by-step explanation: i dont know

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.