That is permuations
that would be 10! or 10*9*8*7*6*5*4*3*2*1=3628800 ways
54 is th answer because ther is 6 units on one side and 9 units in the other and when you times you get this I think
Answer:
After 4secs
Step-by-step explanation:
Given the function of the height expressed as;
h(t)=-16^2 + initial height
If initial height = 256, then;
h(t) = -16t^2 + 256t
The pebble will hot the ground at when h(t) = 0
Substitute
0 = -16t^2 + 256t
16t^2 = 256
t^2 = 256/16
t^2 = 16
t = 4
Hence the pebble will hit the ground after 4secs
it is simple, you multiply 2.5 by 4
2.5*4=10
