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3 years ago

How many pounds are in 8 kilograms? 1 kg = 2.2 lbs 8 kg = [?] lbs

Mathematics

2 answers:

ElenaW [278]3 years ago

5 0

Answer:

17.6 lbs

Step-by-step explanation:

1kg=2.2lbs

Multiply each side by 8

8kg=17.6 lbs

slamgirl [31]3 years ago

5 0

Answer:

17.637 lbs

Step-by-step explanation;

multiply the number of kilograms by 2.205, and you will get the number of pounds:)

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3 years ago

On a multiple-choice test. Abby randomly guesses on all seven questions. Each question

Murrr4er [49]

Answer:

0.173 probability that she gets exactly three questions correct.

Step-by-step explanation:

For each question, there are only two possible outcomes. Either she guesses the correct answer, or she does not. The probability of guessing the correct answer for a question is independent of other questions. So 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.

Seven questions:

This means that $n = 7$

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Abby guesses, which means that $p = \frac{1}[4} = 0.25$

Find the probability to the nearest thousandth, that Abby gets exactly three questions correct.

This is P(X = 3).

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3 years ago

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Step-by-step explanation:

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4 years ago

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Free_Kalibri [48]

Answer:

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Step-by-step explanation:

Step 1: Factor out GCF

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Step 2: Factor out <em>x²</em>

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And we have our factored answer.

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3 years ago

Read 2 more answers