When the outlier(s) are removed, how does the mean change? dot plot with 1 dot over 18, 2 dots over 34, 3 dots over 38, 2 dots over 40, 3 dots over 44, 2 dots over 46, and 2 dots over 48

The mean decreases by 2.1.
The mean increases by 1.6.
The mean increases by 2.1.
There are no outliers.

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.