Answer:
1857.12 square meters
Step-by-step explanation:
Let L be the length of the rectangle and 'W' be the width
Perimeter = 
The fencing material costs $30 per meter.
The material for the partitions costs $25 per meter


Solve for L

Area = length times width

Now take derivative and set it =0

set the derivative =0 and solve for W

So width = 31.8 that gives maximum area

square meter
Answer:

Step-by-step explanation:
<u>Probabilities</u>
When we choose from two different sets to form a new set of n elements, we use the so-called hypergeometric distribution. We'll use an easier and more simple approach by the use of logic.
We have 6 republicans and 4 democrats applying for two positions. Let's call R to a republican member and D to a democrat member. There are three possibilities to choose two people from the two sets: DD, DR, RR. Both republicans, both democrats and one of each. We are asked to compute the probability of both being from the same party, i.e. the probability is

Let's compute P(DD). Both democrats come from the 4 members available and it can be done in
different ways.
For P(RR) we proceed in a similar way to get
different ways.
The total ways to select both from the same party is

The selection can be done from the whole set of candidates in
different ways, so


I have to drive my grandpa to the hospital
Answer:
30
Step-by-step explanation:
Subtract the 1023 reading from the 1053 one:
1053
-1023
---------
30
Her electric consumption was 30.
Can you provide the model?