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melisa1 [442]
3 years ago
10

Which of these is an example of a random sample? A. A random fan asks for the band to play her favorite song at the next concert

. B. Walter asks his three friends whether or not they enjoyed the concert. C. The band manager picks a person in the first row to go backstage at a concert. D. Five people are chosen randomly from a crowd of people at a concert.
Mathematics
1 answer:
zmey [24]3 years ago
7 0
I believe that the correct answer is D
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Pls help i don't know Anymore​
ch4aika [34]

1/3

本题已由中国数学会官方解答(现有会员:2人)

8 0
2 years ago
The sum of eight times a number and fifteen is seven. find the number.
Andru [333]
Here u go it would be 8x+15=7
5 0
3 years ago
Read 2 more answers
You found a pair of shoes that cost $80. The store has them on sale for 30% off. How much will you pay for the shoes after the d
GREYUIT [131]

Answer:

You will pay 24 dollars for the shoes after the discount.

5 0
3 years ago
Please help cant find anywhere
pentagon [3]

Answer:

The option is first one that is

\frac{m^{7}n^{3}n}{m}

Step-by-step explanation:

Given:

\frac{m^{7}n^{3}}{mn^{-1} },m\neq 0,n\neq 0

After negative exponent eliminated we get

\frac{m^{7}n^{3}n}{m}

Negative exponent :

The variable containing negative powers. Here the variable( n⁻¹) is negative exponent.

Law of indices

a^{-1} = \frac{1}{a}\\\\Here\\n^{-1} = \frac{1}{n}\\\\

\\\textrm{Using law of indices we get}\\\frac{m^{7}n^{3}}{mn^{-1} }=\frac{m^{7}n^{3}}{m\frac{1}{n} } }\\\\ \frac{m^{7}n^{3}}{mn^{-1} }=\frac{m^{7}n^{3}n}{m}

8 0
3 years ago
Help me with these please!
Elodia [21]
The greatest number of 1/3 meter long ribbons she will get is the quotient of dividing 3/4 by 1/3 while the remaining ribbon will be the remainder.

3/4 ÷ 1/3 = 3/4 x 3/1 = 9/4 = 2 1/4

Therefore, she will cut two 1/3 meter long ribbons and 1/4 meter long ribbon will remain from the original ribbon.
7 0
3 years ago
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