Ask your own question, for FREE!
Mathematics 8 Online
OpenStudy (anonymous):

Math Music problem help.. thanks! :)

OpenStudy (beccaboo333):

What is the question..?

OpenStudy (anonymous):

Sorry cite kicked me out and would not let me add attachment.

OpenStudy (beccaboo333):

Try fully asking in Music. There is a music section on here.

OpenStudy (beccaboo333):

Sorry I can't really help.

OpenStudy (anonymous):

Its okay. thanks tho for trying to help. Oh nd didnt post it on music cause its more of a math problem.

OpenStudy (turingtest):

middle C, \(C_4\) has a frequency of \(2^8=256~Hz\) \(C_5\) has twice that, which is a frequency of \(2\cdot256=2\cdot2^8=2^9~Hz\), on power of two higher. Use this pattern to get your answer.

OpenStudy (turingtest):

typo - *one factor of two higher*

Parth (parthkohli):

@beccaboo333 Math section is appropriate. Remember that math has applications everywhere!

OpenStudy (anonymous):

Im still confused on how to solve them problem. but thanks for trying to help out :)

OpenStudy (turingtest):

do you see that we are given middle C as\[C_4=256~Hz=2^8~Hz\]?

OpenStudy (anonymous):

Yes i see that on the picture

OpenStudy (turingtest):

and do you see that \(C_5\) is twice as many Hz ?

OpenStudy (anonymous):

Yes

OpenStudy (turingtest):

did so do you see that this means that \(\large C_5=2^9~Hz\) ?

OpenStudy (anonymous):

No i do not see that. where do you get 2^9?

OpenStudy (turingtest):

have you not seen the rule\[x^a\cdot x^b=x^{a+b}\]?

OpenStudy (anonymous):

If i did i dont remember it. Sorry maths not my best subject as u can tell.

OpenStudy (turingtest):

That's okay, just try to understand and use it now. The rule is: if the bases are the same (x in my example) then if we multiply two terms we add their exponents.

OpenStudy (turingtest):

\(C_5=2^8=256\) because the next note is twice the frequency, we can find it by multiplying by 2. Remember that 2 can be written as \(2^1\), since raising a number to the power 1 does not change it. then we see that \[C_6=2C_4=2\cdot2^8=2^1\cdot2^8=2^{8+1}=\large2^9 ~Hz\]

OpenStudy (turingtest):

typo, should say\[C_5=2C_4=2\cdot2^8=2^1\cdot2^8=2^{8+1}=\large2^9 ~Hz\], not \(C_6=...\)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!