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forsale [732]
3 years ago
7

Solve the following formula for m v2=3Pmn

Mathematics
1 answer:
Andru [333]3 years ago
8 0

Answer:

m= 0 /(−3np+v2 )

Step-by-step explanation:

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A sample of 25 undergraduates reported the following dollar amounts of entertainment expenses last year:
Kaylis [27]

Answer:

A.

mean = 724.2

Median = 715

Mode = 768

B.

Range = 85

Standard deviation = 29.30

C.

Interval = [665.6, 782.8]

Step-by-step explanation:

Number of samples n = 25

Summation X= 769 + 691 + 699 +730+711+ 765+ 702 718 +719 +712+ 768 +688 +757+695 768 +735 +709 +758 +708+ 693 +736 700+ 687 +772 +715 = 18105

A.

1. Mean = 18105/25

= 724.2

2. Median is the middle value when arranged from the least value to the highest = 715

3. Mode is the number with the highest frequency = 768 (occured two times)

B.

1. Range = highest value - lowest value

Highest value = 772

Lowest value = 687

772-687 = 85

2. Standard deviation = √(X-barX)²/n-1

= √20604/25-1

=√858.5

= 29.30

Please check attachment for the full calculation of the standard deviation

C.

Interval

[Mean - 2(sd), mean + 2(sd)]

= [724.2-2x29.3, 724.2+2x29.3]

=[665.6, 782.8]

4 0
2 years ago
Qual é a frequência de cada gênero de leitura citados?​
Karo-lina-s [1.5K]

Answer:

............................

6 0
3 years ago
Will mark brainliest if ur correct! Pls and ty
galina1969 [7]

Answer:

138

Step-by-step explanation:

Hexagon total angle = 720

170+ 277 + 135 = 582

720 - 582 = 138

7 0
2 years ago
Ratio of boys to girls in a class of 27 is 1:2
kvasek [131]
9 boys and 18 girls
7 0
2 years ago
What is 2 1/2 * 1 1\2 have it as a mixed fraction pls.
gizmo_the_mogwai [7]

Answer: 15/4 or 3 3/4

Explanation: You make 2 1/2 into 5/2 (improper fraction) and 1 1/2 into 3/2.

You multiply the two together (5/2 x 3/2) equaling 15/4 (improper fraction) or 3 3/4 (mixed fraction)

6 0
3 years ago
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