An econometrics class has 80 students, and the mean student weight is 145 lb. a random sample of four students is selected from the class, and their average weight is calculated. will the average weight of the students in the sample equal 145lb?

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

What is the equation of the graph below? y=sec(x)-4

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal