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insens350 [35]
10 months ago
13

4 letters are typed, without repetition. What is the probability that all 4 will be vowels? Write your answer asa percent. Round

your answer to three decimal places.The probability is
Mathematics
1 answer:
Marysya12 [62]10 months ago
3 0

There are 26 letters in the alphabet, 5 are vowels, therefore, the probability of choosing a vowel the first time is:

\frac{5}{26},

and the second time is:

\frac{4}{25}\text{.}

Continuing with this reasoning, we get that the probabilities each time are:

\frac{5}{26},\frac{4}{25},\frac{3}{24},\frac{2}{23}\text{.}

Finally, the probability that you get all vowels is the product of the probabilities:

\frac{1}{2990}\text{.}

Writing the above result as a percentage we get:

0.033\%.

Answer:

0.033\%\text{.}

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Divide. 413÷129 Enter your answer, as a mixed number in simplest form, in the box.
kompoz [17]

For this case we must divide the following expression:

\frac {413} {129}

The expression can not be simplified. When dividing we have that its decimal form is given by:

3,201550

If we convert to a mixed number we have:

3 \frac {26} {129}

Verifying:

3 \frac {26} {129} = \frac {129 * 3 + 26} {129} = \frac {413} {129}

Answer:

3 \frac {26} {129}

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Answer:

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Step-by-step explanation:

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I need some help with this calculus 1 implicit diffrention problem?
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Answer:

y" = -24 / y³

Step-by-step explanation:

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Again, take the derivative of both sides with respect to x.

12 + 2y y" + y' (2y') = 0

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Solve for y' in the first equation.

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Solve for y² in the original equation and substitute:

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