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bagirrra123 [75]
3 years ago
5

A ballet company has 30 dancers. They want to randomly sample 8 dancers to complete a survey.

Mathematics
2 answers:
Y_Kistochka [10]3 years ago
8 0

Answer:

A, C, and D

Step-by-step explanation:

B is not a random sample.

FinnZ [79.3K]3 years ago
4 0

Answer: stripers are cool

Step-by-step explanation:

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WARNING : NON SENSE ANSWER REPORT TO MODERATOR ​
Rzqust [24]

Answer:

\frac{180}{147}

Step-by-step explanation:

  • Simplify (\frac{3}{-7} - \frac{11}{21} )

=> \frac{(-3 \times 3) - 11}{21}

=> \frac{-9 - 11}{21}

=> \frac{-20}{21}

  • Find the additive inverse of  \frac{-20}{21} by using its property - <em>"Sum of a number & its additive inverse is always zero". </em>Assume that 'x' is an additive inverse of  \frac{-20}{21}.

=> x + \frac{-20}{21} = 0

=> x = 0 - (-\frac{20}{21}) = \frac{20}{21}

  • Simplify (\frac{9}{5} \div \frac{7}{5} )

=> \frac{9}{5} \times \frac{1}{\frac{7}{5} }

=> \frac{9}{5} \times \frac{5}{7}

=> \frac{9}{7}

  • Now, find the product of \frac{9}{7} & \frac{20}{21}

=> \frac{9}{7} \times \frac{20}{21}

=> \frac{180}{147}

3 0
3 years ago
PLZZ help ZOOM IN THE SEE IT CLEAR easy math problem
9966 [12]

Answer:

\large\boxed{\sqrt{16}}

Step-by-step explanation:

\sqrt{15}\ \text{is irrational number}\\\\\sqrt{21}\ \text{is irrational number}\\\\\sqrt{22}\ \text{is irrational number}\\\\\sqrt{16}\ \text{is rational number because}\ \sqrt{16}=4

3 0
3 years ago
What’s this music notes name help me please
juin [17]

Answer:

1 e

2 b

Step-by-step explanation:

4 0
3 years ago
Prove that: tan20+4sin20 =\sqrt{3}
GenaCL600 [577]

Answer:

the answer is 24

Step-by-step explanation:

applyourknowledge

8 0
3 years ago
I have no idea how to do this.
Viktor [21]
A) the perimeter of a triangle is the bottom plus the left slanty side plus the right slanty side, but you need the bottom in ft so that would be 6 ft. the perimeter is 13 ft

b) 1 yard
5 0
3 years ago
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