Ok so area is length times width. A square has the same sides all around, which is called a quadrilateral. So you would plug in 40 for length and width. 40x40= 1,600 cm^2 <———— is your answer.
Hope this helped :)
Each student gets 25/100 of a piece of the poster board.
Hope it helps!
Answer:
Population of bacteria four hours later
or nearest whole number

Step-by-step explanation:
Given,
Let amount of bacteria four hours later is=A
Rate of increase of bacteria per hour 
Initial population of bacteria is =54
Time 4 hours
Find the population of bacteria 4 hours later
Solution,

![\left [ x \right ]_{54}^{A}=4.0565/1.3\left [e^{1.3t} \right ]_{0}^{4}](https://tex.z-dn.net/?f=%5Cleft%20%5B%20x%20%5Cright%20%5D_%7B54%7D%5E%7BA%7D%3D4.0565%2F1.3%5Cleft%20%5Be%5E%7B1.3t%7D%20%20%5Cright%20%5D_%7B0%7D%5E%7B4%7D)




Population of bacteria 4 hours later is
Answer:
Step-by-step explanation:
In vertex form, the equation is
y = a(x-h)^2 + k
So just read off the values!
Answer:
15.4 Liters
Step-by-step explanation
1 kilometere x 2.2 liters = 2.2 liters
7 kilometeres x 2.2 liters = 15.4 liters