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Varvara68 [4.7K]
4 years ago
5

A radio disc jockey has 8 songs on this upcoming hours playlist: 3 are rock songs,2 are reggae, and 3 are country songs. The dis

c jockey randomly chooses the first song to play, and then she randomly chooses the second song from the remaining ones. What is the probability that both songs are reggae songs?
Mathematics
2 answers:
dimulka [17.4K]4 years ago
6 0
P (both songs are reggae songs)=2/8×1/7=2/56=1/28
ioda4 years ago
3 0
Answer:

The Probability That Both Songs Are Probably Reggae Is 2 Out Of 8. This Is Because Our Of All 8 Songs There Are Only 2 Reggae Songs So It Can Only Be Picked Twice
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Given the point and slope, write the equation of the line
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7)


\bf (\stackrel{x_1}{1}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{-1}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-1-4}{6-1}\implies \cfrac{-5}{5}\implies -1 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-4=-1(x-1) \\\\\\ y-4=-x+1\implies y=-x+5


9)


\bf (\stackrel{x_1}{-12}~,~\stackrel{y_1}{14})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{-1}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-1-14}{6-(-12)}\implies \cfrac{-15}{6+12}\implies \cfrac{-15}{18}\implies -\cfrac{5}{6}


\bf \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-14=-\cfrac{5}{6}[x-(-12)] \\\\\\ y-14=-\cfrac{5}{6}(x+12)\implies y-14=-\cfrac{5}{6}x-10\implies y=-\cfrac{5}{6}x+4

7 0
3 years ago
Can three points be noncoplanar?
olga55 [171]
NO! 3 points cannot be non-co-planar 

Good luck! :) 
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What is the mean? 24,36,85,77,42,24
Kisachek [45]

Answer:

48 <em>would be the mean.</em>

<em></em>

Step-by-step explanation:

<em>The mean is when you add up the numbers and then divide it by how many numbers there are. </em>

<em />

<em />24+36+85+77+42+24=288<em />

<em />

<em />288/6=48<em />

<em />

<em>:)</em>

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Margie order 120 pizzas for the school pizza party one tenth of the pizzas were cheese how many cheese pizzas she ordered
dangina [55]

Answer:

12

Step-by-step explanation:

Hope This Helps!

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3 years ago
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Step-by-step explanation:

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