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Gnom [1K]
3 years ago
7

What is this answer i need to know please and how you figured it out?

Mathematics
2 answers:
denis-greek [22]3 years ago
6 0
Yeah whats the question?
Delicious77 [7]3 years ago
5 0
What is your question?????
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A rectangular garden has a length of 9 feet and a width of 4.5 feet. What is the perimeter of the garden?​
Andreyy89
Answer: 27

Explanation:
P = 2(l+w) = 2 · (9 + 4.5) = 27
6 0
3 years ago
If 8 identical blackboards are to be divided among 4 schools,how many divisions are possible? How many, if each school mustrecei
MAXImum [283]

Answer:

There are 165 ways to distribute the blackboards between the schools. If at least 1 blackboard goes to each school, then we only have 35 ways.

Step-by-step explanation:

Essentially, this is a problem of balls and sticks. The 8 identical blackboards can be represented as 8 balls, and you assign them to each school by using 3 sticks. Basically each school receives an amount of blackboards equivalent to the amount of balls between 2 sticks: The first school gets all the balls before the first stick, the second school gets all the balls between stick 1 and stick 2, the third school gets the balls between sticks 2 and 3 and the last school gets all remaining balls.

 The problem reduces to take 11 consecutive spots which we will use to localize the balls and the sticks and select 3 places to put the sticks. The amount of ways to do this is {11 \choose 3} = 165 . As a result, we have 165 ways to distribute the blackboards.

If each school needs at least 1 blackboard you can give 1 blackbooard to each of them first and distribute the remaining 4 the same way we did before. This time there will be 4 balls and 3 sticks, so we have to put 3 sticks in 7 spaces (if a school takes what it is between 2 sticks that doesnt have balls between, then that school only gets the first blackboard we assigned to it previously). The amount of ways to localize the sticks is {7 \choose 3} = 35. Thus, there are only 35 ways to distribute the blackboards in this case.

4 0
3 years ago
Find all the real square roots of 0.0064
LenKa [72]
√64 = 8

64÷1000 = 0.0064

8÷1000=0.0008

√0.0064 = 0.0008
5 0
3 years ago
Read 2 more answers
Find the value of x<br> Pls look at the photo to answer
Marat540 [252]

Answer:

B

Step-by-step explanation:

so 8(2)=16=5x-4

5x=20

x=4

so B

8 0
3 years ago
Travis is sewing a pillow for his Home Arts class. The pillow will be made from 2 identical rectangles. Each rectangle is 1 1/2
Semenov [28]

Answer:

11/4

Step-by-step explanation:


3 0
3 years ago
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