9x^3-39x^2-38x+40=(3x-2)(3x+4)(x-5) by synthetic division
Thus roots are -4/3, 2/3, 5
You walk 0.5 miles every 10 minutes.
For
y=a(x-h)^2+k
the axis of symmetry is x=h
so
y=2/3(x-2)^2-5
the axis of symmetry is x=2
answer is C
Andy's family drove 3000 meters. 1 kilometer =1000 meters
28. $4.80
29. $7.31
i’m not sure about 30 but i hope i helped :)
