any number to the power of 0 equals 1
hope this helps :)
In 139.4 
sec rapidly is area of enclosed by the ripple increasing at the end of 6.4 seconds.
What is area of circle?
For measuring the area occupied by a circular field or plot, use the area of a circle formula. The area formula will allow us to determine how much fabric is required to completely cover a circular table, for example. We can determine the boundary length, or the circle's circumference, using the area formula.
Here area of circle
=> A= π
--------> 1
Differentiating 1 with respect to to time then
=> 
If the radius is increasing at a constant rate 3.3ft/sec then after 6.4 seconds, radius is
=> 6.4*3.3=21.12 ft.
We know 
and so ,
=> 
= 2**21.12*3.3=139.4 sec.
Hence In 139.4 sec rapidly is area of enclosed by the ripple increasing at the end of 6.4 seconds.
To learn more about area of circle refer the below link
brainly.com/question/10645610
#SPJ4
Well since you didn't provide the choices, I'll have to make some assumptions... we'll call the red pens R, the black pens B and the Blue pens x. If total cost = T then We can say...
T=R(2.50)+B(2.50)+x(2.50)
It could also be shown as
T = R + B + x(2.50)
Another way that we could have approached it since there is no difference in price between colors is just say each pack of pens (no matter the color) = P... so...
T = P (2.50)
Answer:
130.8
Step-by-step explanation:
I did the quiz
Answer:
B a b i e s
Step-by-step explanation:
It makes it goody
