*Hãy chứng minh theo chiều ngược lại a) Nếu I là trung điểm của đoạn thẳng

AB thì với mọi điểm M ta có :

vectơ MA + vectơ MB = 2 vectơ MI

b) Nếu G là trọng tâm của tam giác

ABC thì với mọi điểm M ta có vectơ MA + vectơ MB + vectơ MC

= 3 vectơ MG

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

What is the solution to the equation in the & show work i’m very