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Karolina [17]
3 years ago
15

Wavelength and Frequency

Mathematics
2 answers:
avanturin [10]3 years ago
8 0

Answer:

D - 2 to 1

Step-by-step explanation:

I think the answer is 2 ratio 1 because of the wavelength of the blue note of 1/2 less than the wavelength of the red note.

makvit [3.9K]3 years ago
5 0

Answer:

D. 2 to 1

Step-by-step explanation:

I calculated it logically

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£70 is divided between Natasha, Richard & Stephen so that Natasha gets twice as much as Richard, and Richard gets three time
Korvikt [17]

The share of Natasha is £ 42

<em><u>Solution:</u></em>

£70 is divided between Natasha, Richard & Stephen

Total amount = 70

Let the share of natasha be "x"

Let the share of richard be "y"

Let the share of stephen be "z"

Natasha gets twice as much as Richard

x = 2y ------ eqn 1

Richard gets three times as much as Stephen

y = 3z

z = \frac{y}{3} ----- eqn 2

Total amount = 70

share of natasha + share of richard + share of stephen = 70

x + y + z = 70

Substitute eqn 1 and eqn 2

2y + y + \frac{y}{3} = 70\\\\\frac{6y+3y+y}{3} = 70\\\\10y = 210\\\\y = 21

Substitute y = 21 in eqn 1

x = 2y = 2(21) = 42

x = 42

Thus natasha gets £ 42

6 0
3 years ago
Only answer if you’re sure, will give Brainly :) thank you
nadezda [96]
The answer is 44 h(-7)= -7^2 -5 =49-5=44
4 0
2 years ago
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At the Kindom Zoo in Lalaland, a zookeeper named
Mnenie [13.5K]

Answer:

70

Step-by-step explanation:

14 = 27 \\

x = 135

x =  \frac{14 \times 135}{27}

x = 70

7 0
3 years ago
To solve the inequality 9x &gt;-4, the inequality sign must be reversed.
Anna35 [415]

Answer:

false

Step-by-step explanation:

you only need to reverse the sign when you are dividing by a negative number

7 0
3 years ago
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A custom rectangular tabletop has a length that is twice it’s width, and the tabletop measures 76 inches on its diagonal. What a
Sunny_sXe [5.5K]

Answer:

<em>The dimensions of the tabletop: Length= 67.976... inches and Width= 33.988... inches and the perimeter will be 203.929... inches.</em>

Step-by-step explanation:

Suppose, the width of the rectangular tabletop is x inch.

As the tabletop has a length that is twice it’s width, so the length will be:  2x inch.

The tabletop measures 76 inches on its diagonal.

<u>Formula for length of diagonal of rectangle</u>:  d=\sqrt{l^2+w^2}

So, the equation will be..........

76=\sqrt{(2x)^2+ x^2}\\ \\ 76=\sqrt{4x^2+x^2} \\ \\ 76=\sqrt{5x^2} \\ \\ 5x^2= 76^2= 5776\\ \\ x^2= \frac{5776}{5}=1155.2 \\ \\ x= \sqrt{1155.2} =33.988...

Thus, the width of the tabletop is 33.988... inches and the length will be:  (2×33.988...) = 67.976... inches.

The perimeter will be:  2(33.988...+ 67.976...) inches = 203.929... inches.

5 0
2 years ago
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