Speed=s'
acceleration=s''
take derititive to find speed
a.
I willl assume you know the power rule so
s'=6t²-18t+12
solve when s'=36
36=6t²-18t+12
6=t²-3t+2
0=t²-3t-4
0=(t-4)(t+1)
set to zero
t-4=0
t=4
t+1=0
t=-1, false no negative times allowed
at t=4 or 4 seconds
b. at t=4
take deritive again
s''=12t-18
at t=4
s''=12(4)-18
s''=48-18
s''=30
acceleartion is 30mpsps
a. at t=4
b. 30 meters per second per second
Answer:
Step-by-step explanation:
a not enough info
Answer:
C) Has a standard deviation of return of zero
Step-by-step explanation:
A riskfree asset is one in which return is certain in the future. With a standard deviation of zero, it means that there is certainty for return in investment.
He covered 5 yards in 9 hops.
So you would do 5 divided by 9, which is 0.555555555555556, rounded, it would be about 0.6 yards. Hope this helps.
Answer:
It is A
that fancy sign means the square root, not division.
B is untrue as well