Answer:
6 sec
Step-by-step explanation:
when ball return to the ground, h is 0
0=at^2 +bt
0 = -4.9t^2+29.4t
factor: -4.9 times -6 is 29.4
0 = -4.9t(t-6)
set each equation to 0
-4.9t = 0 or t-6=0
t = 0 or t= 6
it's 6 seconds
Answer:
12160000.
Step-by-step explanation:
i think this is right but... i did 12.16 *1,000,000 to get my answer.
Answer:

Step-by-step explanation:

Answer:
Divided by 10 every time
Step-by-step explanation:
/10 is the pattern
Answer: Answer choice A
Step-by-step explanation:
Because 2 has 20 copies 4 has 40 so we can only assume that 6 will follow the pattern and be 60.
Hope it helps!