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Fynjy0 [20]
3 years ago
9

If two instruments are in tune, what should their beat frequency be?

Mathematics
1 answer:
MA_775_DIABLO [31]3 years ago
5 0

Answer:

120hz is the answer

Step-by-step explanation:

this is just known fact. you learn this early on

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There are eight students in a class. Only one of them has passed Exam P/1 and only one of them has passed Exam FM/2. No student
Svetach [21]

Answer: There is probability of 0.57 chances that exactly three students from a group of four students have not passed Exam P/1 or Exam FM/2.

Step-by-step explanation:

Total number of students = 8

Number of student who has passed Exam P/1 = 1

Number of student who has passed Exam FM/2 = 1

No student has passed more than one exam.

According to question, exactly three students from a randomly chose group of four students have not passed Exam P/1 or Exam FM/2.

So, Probability will be

\frac{^6C_3\times ^2C_1}{^8C_4}\\\\=\frac{20\times 2}{70}\\\\=\frac{4}{7}\\\\=0.57

Hence, there is probability of 0.57 chances that exactly three students from a group of four students have not passed Exam P/1 or Exam FM/2.

4 0
3 years ago
PLEASE HELP!!!!!!<br> will mark as brainliest!!!!!
olya-2409 [2.1K]

Answer:

Far left one, A

Step-by-step explanation:

3 0
3 years ago
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Pls help ASAP I need help
iren [92.7K]

Answer:

14

Step-by-step explanation:

94 - 10 = 84

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8 0
3 years ago
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11. The test scores of 20 students are shown below.
daser333 [38]
Your answer would be 10.6
3 0
3 years ago
Use rounding and estimation to predict the approximate quotient of 285 ÷ 11.
Rasek [7]
Estimate 285  as 300 and 11 as 10  so 

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3 years ago
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