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Mekhanik [1.2K]
2 years ago
5

Pls answer fast first to answer correct is the gets brainliest

Mathematics
2 answers:
11Alexandr11 [23.1K]2 years ago
7 0

Answer:

The answer is the first option; 6^1/12

Step-by-step explanation:

We can simplify the question by using the radical rule to rewrite it as
6^1/3 ÷ 6^1/4

Then we use exponent rule which states that when we are dividing exponents of the same base, we have to subtract them. We see that the exponents are 1/3 and 1/4. So we use basic fractional division, here's the subtraction:

= 1/3 - 1/4
= 4/3 - 3/4 (we criss-crossed)
= 1/12 (we subtracted the denominators and multiplied the denominators)

Now that we have subtracted the exponents, we can write the answer as 6^1/12

lyudmila [28]2 years ago
6 0

Answer:

Option #1: 6\frac{1}{2}

Step-by-step explanation:

#1: Multiply \frac{\sqrt[3]{6}}{\sqrt[4]{6}} and \frac{\sqrt[3]{6}}{\sqrt[4]{6}}:

\frac{\sqrt[3]{6}}{\sqrt[4]{6}} * \frac{\sqrt[3]{6}}{\sqrt[4]{6}}

#2: Combine and simplify the denominator:

<u>- </u><u>Multiply </u>\frac{\sqrt[3]{6}}{\sqrt[4]{6}} <u>by </u>\frac{\sqrt[3]{6}}{\sqrt[4]{6}} = \frac{\sqrt[3]{6}  \sqrt[4]{6}^{3} }{\sqrt[4]{6} \sqrt[4]{6}^3}

<u>- Raise </u>\sqrt[4]{6}<u> to the power of 1</u>

<u>- Use the power rule </u>a^{m} a^{n} =a^{m+n}<u> to combine exponents:</u> \frac{\sqrt[3]{6} \sqrt[4]{6}^{3} }{\sqrt[4]{6}^{1+3}}

<u>- Add 1 and 3</u>

<u>- Rewrite </u>\sqrt[4]{6}^4 <u>as 6:</u> \frac{\sqrt[3]{6} \sqrt[4]{6}^3}{6}

#3: Simplify the numerator:

<u>- Rewrite the expression using the least common index of 12:</u> \frac{\sqrt[12]{6^4} \sqrt[12]{216^3}}{6}

<u>- Combine using the product rule for radicals:</u> \frac{\sqrt[3]{6^4 *216^3}}{6}

<u>- Rewrite 216 as </u>6^3<u>:</u> \frac{\sqrt[3]{6^{4}*(6^{3})^{3}}}{6}

<u>- Multiply the exponents in </u>(6^{3})^3<u>:</u> \frac{\sqrt[12]{6^{4}*6^{9}}}{6}

<u>- Use the power rule</u> a^{m}a^{n}=a^{m+n} <u>to combine exponents and add </u>4+9<u>:</u>

\frac{\sqrt[12]{6^{13}}}{6}

<u>- Raise 6 to the power of 16:</u> \frac{\sqrt[12]{13060694016}}{6}

<u>- Rewrite 13060694016 as</u> 6^{12}*6<u>:</u> \frac{\sqrt[12]{6^{12}*6}}{6}

<u>- Pull terms out from under the radical:</u> \frac{6\sqrt[12]{6}}{6}

#4: Cancel the common factor of 6:

\frac{\sqrt[12]{6}}{6}=6\frac{1}{2}

<u>The correct simplified answer for </u>\frac{\sqrt[3]{6}}{\sqrt[4]{6}} <u>is Option #1:</u> 6\frac{1}{2}<u>.</u>

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Answer:

a) 56% probability you get a female student.

b) 30.33% probability that both are female

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Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in whih the students are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

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)!}

a. Pick one student randomly, what is the probability you get a female student?

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Desired outcomes:

2 female students, from a set of 14. So

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Probability:

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c. Pick three students randomly, what is the probability that you get 2 female and one male?

Desired outcomes:

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Desired outcomes:

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Total outcomes:

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Probability:

P = \frac{D}{T} = \frac{2310}{12650} = 0.1826

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