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Mashcka [7]
3 years ago
6

How do i simplify 5 √640

Mathematics
2 answers:
s2008m [1.1K]3 years ago
8 0
Ans : 126 ( to 3 sf )

workings in the pic below :)

Andrews [41]3 years ago
5 0
5 sqrt(640)=
5 sqrt(2*2*2*2*2*2*2*5)=
5 sqrt((2^3)^2*2*5)=
5 sqrt(8^2*10)=
5*8 sqrt(10)=
40 sqrt(10)
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A meeting on an unpopular topic has been announced. The number of attendees may be modeled by X where What is the probability th
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Answer:

The probability that at least 5 people attend the meeting given that at least 2 attend is 12.50%.

Step-by-step explanation:

Note: This question is not complete. The complete question is therefore provided before answering the question as follows:

A meeting on an unpopular topic has been announced. The number of attendees may be modeled by X where:

P(X = x) = 1 / 2^(x+1), for x = 0,1,2,...

What is the probability that at least 5 people attend the meeting given that at least 2 attend?

The explanation of the answer is now provided as follows:

Given:

P(X = x) = 1 / 2^(x+1), for x = 0,1,2,...                    (1)

Since it is given that at least 2 attend, it implies that we need to calculate P(x) at x = 2.

Substituting x = 2 into equation (1), we have:

P(X = 2) = 1 / 2^(2 + 1)

P(X = 2) = 1 / 2^3

P(X = 2) = 1 / 8

P(X = 2) = 0.1250, or 12.50%

Therefore, is the probability that at least 5 people attend the meeting given that at least 2 attend is 12.50%.

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