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Paraphin [41]
2 years ago
11

A swimmer covers 180m in 20 seconds. How many metres does she swim in one second?​

Mathematics
1 answer:
mylen [45]2 years ago
6 0

Answer:

She swims 9m in one second

Step-by-step explanation:

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An electronic product contains 48 integrated circuits. The probability that any integrated circuit is defective is 0.01, and the
BigorU [14]

Answer:

0.6173 = 61.73% probability that the product operates.

Step-by-step explanation:

For each integrated circuit, there are only two possible outcomes. Either they are defective, or they are not. The integrated circuits are independent. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

An electronic product contains 48 integrated circuits.

This means that n = 48

The probability that any integrated circuit is defective is 0.01.

This means that p = 0.01

The product operates only if there are no defective integrated circuits. What is the probability that the product operates?

This is P(X = 0). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{48,0}.(0.01)^{0}.(0.99)^{48} = 0.6173

0.6173 = 61.73% probability that the product operates.

5 0
3 years ago
Expand the expression 10 (n-8)
Tcecarenko [31]
10n-80 is the answer
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3 years ago
What is the simplest form of 20/8
Rzqust [24]
The simplest form of <span>20/8 is 5/2</span>
3 0
3 years ago
A sequence is shown below
andrew11 [14]

Answer:

c \: is \: correct \\ you \: can \: put \: 1 \: 2 \: 3 \: 4numbers \: in \: equations \: and \: find \: best \: answer

4 0
2 years ago
30 tens is the same value as what number
Fudgin [204]
30 tens is the same value as 300.  30 x 10 = 300
7 0
3 years ago
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