You run a regression analysis on a bivariate set of data ( n = 73 n = 73 ). With ¯ x = 78.4 x ¯ = 78.4 and ¯ y = 46.6 y ¯ = 46.6 , you obtain the regression equation y = 3.923 x − 7.076 y = 3.923 x - 7.076 with a correlation coefficient of r = 0.725 r = 0.725 . You want to predict what value (on average) for the response variable will be obtained from a value of 140 as the explanatory variable. What is the predicted response value? y = (Report answer accurate to one decimal place.)

2,600 divided by 80 = 32.5

step-by-step explanation:

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer