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Vilka [71]
3 years ago
9

When two musical notes are a “sixth” apart, the frequency of the lower note is 3/5 the frequency of the higher note. Using f as

the frequency of the higher note, write an expression for the frequency of the lower note. HELP!
1. f - 2/5

2. 3/5 f

3. 2/5 f

4. 3/5 + f
Mathematics
1 answer:
Rashid [163]3 years ago
7 0

Answer:

2. 3/5 f

Step-by-step explanation:

the lower note is the product of it's fractional part and the frequency of the higher note.

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Intersecting circles have how many common tangents?
Oliga [24]

intersecting circles have two common tangents
6 0
4 years ago
An airliner carries 350 passengers and has doors with ah height of 72 in. Heights of men are normally distributed with a mean of
BaLLatris [955]

Answer:

P ( Z < 72 ) = 0.8577     or   P ( Z < 72 ) = 85.77 %

Step-by-step explanation:

We know:

-A normal distribution

-Mean      μ =   69.0   in

-Standard deviation      σ  = 2.8   in

- Population    n  =  350

And doors height   72 in

If passengers will pass through the door without bending that means he must be under 72 in tall, therefore we are looking for the probability of men under 72 in, to find such probability we compute the value of Z according to

Z  =  ( X - μ ) / σ     ⇒             Z  =  ( 72 - 69 ) / 2.8

Z  = 1.07

Now with this value we look the Z tables, to find a value of: 0.8577

So the probability of select a men and that he can fit through the door is

P ( Z < 72 ) = 0.8577  or    P ( Z < 72 ) =  85.77 %

3 0
4 years ago
Theo containers designed to hold water are side by side, both in the shape of a
OlgaM077 [116]

The percentage this empty space is of the entire volume is 26.12 % when rounded to the nearest tenth.

We have given that the shape of a

cylinder Container A has a diameter of 30 feet and a height of 18 feet.

diameter =30 feet and height =18 feet

Therefore

radius=\frac{d}{2} \\\\radius=\frac{30}{2} \ \\\\radius=15

What is the formula for volume of cylinder ?

volume =\pi r^2h

For cylinder A,

volume =\pi r^2h

volume =\pi (15)^218\\ \\V=12723.45 ft^{3}

Similarly for cylinder B,

h=19

radius

\frac{26}{2} =13feet

volume of cylinder B

volume =\pi r^2h\\\\volume =\pi (13)^2(19)\\\\volume =10087.65 feet^3

After pumping all of Cylinder  A into Cylinder B there will remain empty space in B

12723.45-10087.65=2635.8 feet^3

The percentage this empty space is,

of the entire volume is

\frac{2635.8}{10087.65} =0.261289

which is 26.12 %  when rounded to the nearest tenth.  

Therefore,

The percentage this empty space is of the entire volume is 26.12 % when rounded to the nearest tenth.

To learn more about the volume of cylinder visit:

brainly.com/question/9554871

.

8 0
3 years ago
Can someone please help me i would just need the answer
o-na [289]

Answer:

80+50P

Step-by-step explanation:

80 is fixed

50 is variable

1 device = 130

2 decices = 180

8 0
4 years ago
Helppppppppppppppppppppppppp pls
umka21 [38]

Answer:

13: $53

14: 16

Step-by-step explanation:

13: 189-136=53

14: 80 divided by 5= 16

8 0
3 years ago
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