As the comments state, the velocity is the derivative of the position.
Therefore, the velocity as function of time is:
ds / dt = 24 + 6t - 3t^2.
That is a parabola whose maximum is (1,27). With that you know that the velocity will never be either 63 m/s or 81 m/s.
Also, you know that the velocity at t = 1 s is 27 m/s.
And, you can also find that the velocity at t = 3 is 15 m/s.
I am confident on that this analysis solves your question. Else, insert a comment.
Answer:
Jamal :
have = $18
need = $46-$18
= $28
saves = $5 each week
= $5 × 5 weeks
= $25 ( not enough )
Samuel :
have = $10
need = $46 - $10
= $36
saves = $7 each week
= $7 × 5 weeks
= $35 ( not enough )
thus, both boys would not have enough money to pay for the trip .
Answer:
Postive.
Step-by-step explanation:
A positive number times a positive number equals a positive number. This is the multiplication you have been doing all along, positive numbers times positive numbers equal positive numbers. For example, 5 x 3 = 15.
11 gal is more than (>) 28qt
