It went from 54 meters above the surface to 9 meters below the surface...
54 to the surface (0) = 54....from 0 to -9 = 9....so it fell (54 + 9) = 63 meters.
so if it fell 63 meters in 35 seconds, then it fell (63/35) = 1.8 meters per second <===
4/7 is the answer to your question
Answer:
2 1/2 or 2.5
Step-by-step explanation:
1/2x +4=9
-4 -4
1/2x= 5
/1/2 /1/2
x= 2 1/2 or 2.5
Its (x+3)(x+4)=5 , the third one
