Aresidual plot for a set of data with a linear regression equation is shown. which statement is correct?

a) the least squares regression line is a good fit since there is a definite pattern in the residual plot.
b) the least squares regression line is not a good fit as there is a definite pattern in the residual plot.
c) the least squares regression line is a good fit as you have about the same number of points above and below the line.
eliminate
d) the least squares regression line is not a good fit since there is about the same number of data points above and below the line.

there is no grid

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

do you have an easier question cause this shh is hard like theheck

step-by-step explanation: