Answer:
12/4 = 3
Step-by-step explanation:
hope this helps ya :3
The area of the pen is the products of its dimensions
- The dimension of the pen is 300 by 120 feet
- The maximum area of the pen is 36000 square feet.
Let the dimension of the fence be x by y.
So, we have:
<em />
<em> --- perimeter</em>
<em />
<em> -- area</em>
<em />
Subtract 5y from both sides of 

Divide both sides by 2

Substitute
in 


Split

Differentiate

Set to 0

Add 5y to both sides

Divide both sides by 5

Substitute
in 




Recall that:

So, we have:


Hence, the maximum area of the pen is 36000 square feet.
Read more about maximum areas at:
brainly.com/question/11906003
Answer:
0.682 is the probability that one newborn baby will have a weight within one standard deviation of the mean.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 8 pounds
Standard Deviation, σ = 0.6 pounds
We are given that the distribution of weights of full-term newborn babies is a bell shaped distribution that is a normal distribution.
Formula:

P(weight between 7.4 and 8.6 pounds)

This could also be found with the empirical formula.
0.682 is the probability that one newborn baby will have a weight within 0.6 pounds of the mean.
Answer: 4 machines
Step-by-step explanation:
In the given situation, the number of machines is inversely proportional to the time taken by them.
Given : 9 machines can fill an order in 20 hours.
Let n be the number of machines required to fill the same order in 45 hours.
Then , we have the following inverse variation equation:-

Hence, the 4 machines would be needed to fill the same order in 45 hours.
The answer to this is 45 minutes I hope this helps :)