Answer:
B. The McCormick reaper was invented.
Step-by-step explanation:
Answer:
The average rate of speed is 61!
Step-by-step explanation:
183 miles divided by 3 hours of driving is 61 average rate of speed. :)
Answer:
the height is : 2365.48 m
Step-by-step explanation:
hello :
h(t) = − 4.9 t 2 + 211 t + 94 .
the vertex of this parabola is : (-b/2a , h(-b/2a) when : a= -4.9 and b=211
-b/2a = -(211)/2(-4.9) = 21.53
h(21.53) = -4.9(21.53)²+211(21.53)+94 = 2365.48 m
