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3 years ago

Carlos drove 12 laps on a race track. If each lap of the track was 5860.8 yd

Mathematics

2 answers:

nevsk [136]3 years ago

8 0

Answer:

39.96 miles

Step-by-step explanation:

The first step is to find how long he drove in yards. $12\cdot 5860.8=70329.6$ yards. Now, we need to convert it into feet. A yard is exactly three feet, meaning that he drove $70329.6\cdot3=210988.8$ feet. Finally, we need to find how many miles he drove. It is known that there are 5280 feet in a mile, so you just need to divide the number of feet he drove by the number of miles to find that he drove 210998.8/5280=39.96 miles. Hope this helps!

nataly862011 [7]3 years ago

4 0

Answer:

39.96 miles

Step-by-step explanation:

I did these before.

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kompoz [17]

Answer:

The probability that you get zero questions correct is 0.4096

The probability that you get one questions correct is 0.4096

The probability that you get three questions correct is 0.0256

Step-by-step explanation:

These probability can be describe with a Binomial Distribution. These distribution can be used when we have n identical and independent situations in which there is a probability p or probability of success and a probability q or probability of fail. Additionally q is equal to 1 - p. The probability of x for a situation in which we can apply binomial distribution is:

$P( x,n,p) = n Cx * p^{x } * q^ {n-x}$

Where x is the variable that says the number of success in the n situations

And nCx is calculate as:

$nC x = \frac{ n!}{ x! (n-x)! }$

From the question we can identify that:

n is equal to 4 multiple choice question
p is 1/5 or 0.2, the probability of get one question correct
q is 4/5 or 0.8, the probability of get one question incorrect

Then the probability of get zero questions correct of 4 questions is:

$P( 0, 4, 0.2) = 4 C0 * p^{0 } * q^ {4-0}= 0.4096$

The probability of get one question correct of 4 questions is:

$P( 1, 4, 0.2) = 4 C1 * p^{1 } * q^ {4-1}= 0.4096$

The probability of get three questions correct of 4 questions is:

$P( 3, 4, 0.2) = 4 C3 * p^{3 } * q^ {4-3}= 0.0256$

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3 years ago

How do you write 6x=7y in standard form

Anastasy [175]

Standard form is ax+by=c
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Answer:

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Step-by-step explanation:

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2 years ago

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Ad libitum [116K]

Answer:

3/5 is 60/100 in it's simplest form.

Step-by-step explanation:

60 divided by 20 is 3 and 100 divided by 20 is 5.

So 3/5

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2 years ago

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daser333 [38]

Answer:

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Step-by-step explanation:

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