Answer:
21.75 cm/s
Step-by-step explanation:
1 cm above central position means D = 1, so we plug in 1 into D(t) and find the time and which this occurs.

This is the time at which this occurs.
To find instantaneous rate of change, we differentiate D(t) and plug in this t we found. Remembering that d/dt (Sin t) = Cos t

Now putting t:

Thus, the instantaneous rate would be around 21.75 cm/s
Answer: She can by 3 $7.75 books.
Step-by-step explanation:
7.75 times 3= 23.25 so 23.25+24= 47.25 with tax.
$200 a year, for the last 5 years, equal $1,000. That is a 20% increase.
Answer:
Cube
Step-by-step explanation:
The cubed root of 8 = 2 because 2³ = 8.
So 8 is perfect cube.
Answer:
1,492,533
Step-by-step explanation:
Simple math