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bearhunter [10]
3 years ago
13

The intensity (I) of a sound wave varies jointly as the square of its frequency (f), the square of its amplitude (a), the speed

of sound (v), and the density (d) of the substance the wave is traveling through. Which shows this relationship using k as the constant of proportionality? A) k = I f2a2vd B) I = k f2a2vd C) k = If2a2vd D) I = kf2a2vd
Mathematics
2 answers:
Ilia_Sergeevich [38]3 years ago
5 0
I think that the answer is C
nikdorinn [45]3 years ago
5 0

Answer:

Step-by-step explanation:

the answer is D

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Question attached,
alexandr1967 [171]

Answer:

Step-by-step explanation:

(a)\\ \\ (i)\ \sqrt{3}=3^p\\ \\ 3^{\frac{1}{2}}=3^p\\ \\ p=\frac{1}{2}\\ \\ (ii)\ \frac{1}{9}=3^q\\ \\ 3^{-2}=3^q\\ \\ q=-2\\ \\ (b)\\ \\ 3^{\frac{1}{2}(3^x)=\frac{1}{9}\\ \\ 3^{\frac{1}{2}+x}=3^{-2}\\ \\ \frac{1}{2}+x=-2\\ \\ x=-1.5

7 0
3 years ago
A square has a perimeter of 148 inches. How do you find the length of the diagonal of the square?
Sidana [21]

Answer:

52.33 inches

Step-by-step explanation:

Multiply the length of one side by the square root of 2.

In this case: 37, you would divide that by the square root of 2.

Hope this helps!

6 0
4 years ago
Explanation needed tip by using chain rule​
Vesnalui [34]

Answer:

1/(810pi) cm/s

Step-by-step explanation:

V = pi×r²×h = pi×90²×h = 8100pi×h

dh/dt = dh/dV × dV/dt

dV/dh = 8100pi

dV/dt = 10

dh/dt = (1/8100pi) × 10

= 1/(810pi) cm/s

8 0
4 years ago
Divide 54 books between A and B in the ratio 13:14​
Ludmilka [50]

Answer:

hi

Step-by-step explanation:

i think,

13:14=54

13k+14k=54

27k=54

k=54/27

k=2

13×2=26 and 14×2=28

to verify the correctness of the answer-26+28=56

have a nice day

hope it helps

3 0
3 years ago
:) got to love math lol
zzz [600]
Oof im bad at math XD
7 0
3 years ago
Read 2 more answers
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