Brian drove 120 miles at a speed of 60 mph. he drove the same distance back home at an average speed of 40 mph. brian adds the speeds and divides by two to come up with an average speed of 50 mph what is wrong with his reasoning? find his average speed

What is the domain of the given function? {(3,-2), (6, 1), (-1, 4), (5,9), (-4, 0); o {x | x= -4,-1, 3, 5, 6} o {yl y = -2,0, 1,4,9} o {x|x = -4,-2, -1,0, 1, 3, 4, 5, 6, 9} o y y = 4,-2, -1, 0, 1, 3, 4, 5, 6, 9}

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2