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lisov135 [29]
3 years ago
10

Matty’s piano book includes 15 songs in the key of C, 10 in the key of G, and 5 in the key of F. The songs from all three keys a

ppear in random order. Over the past month, Matty has randomly opened his piano book to a song in the key of C 80 times, the key of G 30 times, and the key of F 10 times. What are the theoretical and experimental probabilities that the next song Matty randomly picks will be in the key of G?
Mathematics
1 answer:
Marta_Voda [28]3 years ago
6 0

Matty's piano is going to a random key of c next.

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skelet666 [1.2K]

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Vladimir79 [104]

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KIM [24]

Answer:

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7 0
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How do you factor b^2-81
Naddik [55]
The middle number is 0 and the last is -81Factoring means we want something like(b+_)(b+_)We need two numbers that add together to get and Multiply to get -81which are 9 and -9:<span><span>9+-9 = 0 and </span><span>9*-9 = -81</span></span>
Fill in the blanks in
(b+_)(b+_)
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The answer is : (b+9)(b−9)
<span>
</span>
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3 years ago
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