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3 years ago

What is the LCM of 8,15,10

Mathematics

1 answer:

GaryK [48]3 years ago

4 0

The LCM for 8, 15, and 10 is 120.

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Rick has 7 cats. Carrie has 14 cats. How many fewer cats does Rick have

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Answer:

He has 7 fewer cats because

Step-by-step explanation:

14-7=7

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3 years ago

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3 years ago

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In a class of 25 students, 13 have a brother and 9 have a sister. There are 7 students who do not have any siblings. What is the

Ilya [14]

Answer:

Step-by-step explanation:

Discussion

9 with a sister

13 with a brother

7 with neither.

The total is 29 so you are counting some siblings twice. There are 29 - 25 students that have both, so 4 students have both.

P(brother and sister) = 4/25

P(brother and sister) = 0.16

Answer

P = <u>0.16</u>

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2 years ago

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IRINA_888 [86]

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3 years ago

Tina works for a medical technology company in sales. She travels to doctors' offices and offers them a suite of software relate

sesenic [268]

Answer: b. 1.94

Step-by-step explanation:

For binomial distribution model , the formula to find standard deviation is given by :-

$\sigma=\sqrt{np(1-p)}$

Given : The portability that the offices she visits will eventually purchase her product: p=0.25

The number of offices she visited = 20

We assume that the binomial is an appropriate model for the number of offices that make a purchase.

Then, to find the distance of the possible number of sales Tina could observe from the overall mean number of sales we find standard deviation.

$\sigma=\sqrt{np(1-p)}\\\\=\sqrt{20(0.25)(0.75)}\\\\=\sqrt{3.75}=1.9364916731\approx1.94$

Hence, the correct answer is option (b).

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3 years ago