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3 years ago

Which equation correctly applies the distributive property?

Mathematics

2 answers:

Zanzabum3 years ago

4 0

Answer:

A. (42*3.5)+(42*1.3)+(42*5.2)=42+(3.5+1.3+5.2)

Explanation:

It equals that because the first equation is split into parts and the second equation, it became one whole.

Hope this Helps!

fgiga [73]3 years ago

3 0

Answer:

Step-by-step explanation:

b/c the distributive property have rules it have Addison and multiple it is on and it is distribute the number

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Answer:

26%

Step-by-step explanation:

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4 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

Assume that random guesses are made for ninenine multiple choice questions on an SAT test, so that there are nequals=99 trials

ValentinkaMS [17]

Answer:

The probability that the number of correct answers is 4 is 0.2461.

Step-by-step explanation:

Let X = number of correct answers.

The probability that an answer is correct is,P (X) = p = 0.50.

The total number of questions is, n = 9.

The event of an answer being correct is independent of the other answers.

The success of each trial is defined as a correct answer with equal probability of success for each trial, i.e. 0.50.

The random variable X follows a Binomial distribution with parameter n = 9 and p = 0.50.

The probability mass function of X is:

$P(X=x)={9\choose x}\times0.50^{x}\times (1-0.50)^{9-x};\ x=0,1,2,3...$

Compute the value of P (X = 4) as follows:

$P(X=4)={9\choose 4}\times(0.50)^{4}\times (1-0.50)^{9-4}$

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Thus, the probability that the number of correct answers is 4 is 0.2461.

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3 years ago