The vibration of sound is measured in cycles per second, also called hertz (Hz). The frequency for middle C on a piano is 256 Hz . The C above middle C (one octave above) is 512 Hz . The frequencies of musical notes follow a geometric progression. a. Find the frequency for C two octaves above middle C . b. Find the frequency for C one octave below middle C .
The vibration of sound is measured in cycles per second, also called hertz (Hz). The frequency for middle C on a piano is 256 Hz . The C above middle C (one octave above) is 512 Hz . The frequencies of musical notes follow a geometric progression. a. Find the frequency for C two octaves above middle C . b. Find the frequency for C one octave below middle C .
Solution Summary: The author explains how to calculate the frequency for C two octaves above the middle on a piano.
The vibration of sound is measured in cycles per second, also called hertz (Hz). The frequency for middle
C
on a piano is
256
Hz
. The
C
above middle
C
(one octave above) is
512
Hz
. The frequencies of musical notes follow a geometric progression.
a. Find the frequency for
C
two octaves above middle
C
.
b. Find the frequency for
C
one octave below middle
C
.
By visual inspection, determine the best-fitting regression model for the
scatterplot.
Lesson 8: Multiply and Divide Rational Num
6. Multiply.
8. Divide.
A. -1
A. -316
B. -
C.
B. -1
C. 15
D.
11
D. 32
9. As a cold front moved in, the temperature
7. Mike bought 8 shares of stock for $57.50
each, hoping that the value would
increase. When he sold the shares it
ly for $42.75 per share. Which
s Mike's net profits?
dropped 3°F each hour for 6 hours. What
was the total temperature change åfter the
6 hours?
A. -18°F
$342
B. -9°F
B. -$118
С. -3°F
C. $118
D. -2°F
D. $342
10. The temperature at 9 A.M. was 13.6°C. The temperature at 9 p.M. was 6.4°C. The temperature
at 3 A.M. was -3.5°C.
A. What was the average change in temperature from 9 A.M. to 9 p.M.? Show your work.
B. What was the average change in temperature from 9 A.M. to 3 A.M.? Show your work.
11. Use numbers from the box to complete each equation.
-73 + 24 = -
-13 x(-1) =
33 x (-3) =
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