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sergiy2304 [10]
3 years ago
11

A builder constructed a roof of wooden beams. According to the diagram to the right, what is the length of a sloping beam? Round

to the nearest tenth

Mathematics
1 answer:
lions [1.4K]3 years ago
5 0

Answer:

32.3 ft

Step-by-step explanation:


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Which of the following is irrational?
dedylja [7]

Answer:

\sqrt{2}

Step-by-step explanation:

the other 3 are perfect squares and have rational answers.

\sqrt{1.44} =1.2\\\sqrt{1}= 1\\\sqrt{4} =2

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2 years ago
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Solve for x please and quick please
alisha [4.7K]

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3 years ago
In a doctor's waiting room, there are 14 seats in a row. Eight people are waiting to be seated. Three of the 8 are in one family
lianna [129]
There are 14 chairs and  8 people to be seated. But among the 8. three will be seated together:

So 5 people and (3) could be considered as 6 entities:

Since the order matters, we have to use permutation:

¹⁴P₆ = (14!)/(14-6)! = 2,162,160, But the family composed of 3 people can permute among them in 3! ways or 6 ways. So the total number of permutation will be ¹⁴P₆  x 3! 

2,162,160 x 6 = 12,972,960 ways.

Another way to solve this problem is as follow:

5 + (3) people are considered (for the time being) as 6 entities:

The 1st has a choice among 14 ways
The 2nd has a choice among 13 ways
The 3rd has a choice among 12 ways
The 4th has a choice among 11 ways
The 5th has a choice among 10 ways
The 6th has a choice among 9ways

So far there are 14x13x12x11x10x9 = 2,162,160 ways
But the 3 (that formed one group) could seat among themselves in 3!
or 6 ways:

Total number of permutation = 2,162,160 x 6 = 12,972,960

4 0
3 years ago
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20$ because it goes up and down by 4
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2 years ago
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