Answer:
432π cm² or 1356.48 cm²
Step-by-step explanation:
The area of a circle is πr²
The area of the disks are 144π and 576π.
576π-144π = 432π
432π ≈ 1356.48 cm²
It’s 30m,
18msq/m + 4m x 3
= 18 m + 12m
= 30 m
.300 + .060 + .008
You would break each number's place value down and add them in a line, in decimals, you would do the exact same.
Answer:
Step-by-step explanation:
the displacement of the particle is given by

The rate of change of position gives the value of velocity.
So, v = ds/dt
Differentiate the position function with respect to time.

Now, at t = a
v = -18/a³ m/s
At t = 1
v = - 18 m/s
At t = 2
v = - 18 / 8 = - 2.25 m/s
At t = 3
v = - 18 / 27 = 0.67 m/s