The physical motion of an object is modeled by the function
s = 21.3t where t is the time (measured in seconds) and s
is the position of this object (measured in meters). Find the time
when s= 213.2 meters. Round your answer to three decimal
points.

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for