So we know that the formula for the area of a rectangle is

.
Now both the length and width of the rectangle increase at 3 km/s, therefore,
![A(t) = (3t+l)*(3t+w). Since the initial length = initial width = 4 km, then the initial area = 16 [tex]km^2](https://tex.z-dn.net/?f=A%28t%29%20%3D%20%283t%2Bl%29%2A%283t%2Bw%29.%20Since%20the%20initial%20length%20%3D%20initial%20width%20%3D%204%20km%2C%20then%20the%20initial%20area%20%3D%2016%20%5Btex%5Dkm%5E2)
. We want to know the time when the area is four times its original area, therefore, our new formula is:

. Plugging in our known
values we have:
![64 [km^2] = (3t + 4 [km])*(3t + 4 [km])](https://tex.z-dn.net/?f=64%20%5Bkm%5E2%5D%20%3D%20%283t%20%2B%204%20%5Bkm%5D%29%2A%283t%20%2B%204%20%5Bkm%5D%29)

The area is four times its original area after <span>\frac{4}{3} s[/tex]</span>.
Answer: -1 three times and -1 five times
Step-by-step explanation:
-1 three times = -1 X -1 X -1 = -1
-1 two times = -1 X -1 = 1
-1 four times = -1 x -1 x -1 x -1 = 1
-1 five time = -1 x -1 x -1 x -1 x -1 = -1
Therefore -1 three times and -1 five times will be negative
Answer:
C. The volume of the box is 625 cubic inches
Step-by-step explanation:
So if you take the 125 identical math cubes and multiply it by 5 which represents 5 cubic inches, you should get an answer of 625 cubic inches.
I hope this helped you!!! Enjoy the rest of your day :D
Answer:
Where is the picture so we can see the angles and the triangles
Answer:
see my questions and join