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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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Tommy buys a football for $20 plus 8% tax John buys a helmet for $25 plus 8% tax what is the difference in the amount Tommy and
max2010maxim [7]

Answer:

$5.40

Step-by-step explanation:

First, figure out the cost of the items with tax; for Tommy we have 20*0.08 = 1.6, add that 1.6 to the 20 and his purchase is $21.6, for John we have 25*0.08 = 2, add 2 to his 25 and his purchase is $27. To find the difference we subtract 27-21.6 = 5.4 or $5.40

3 0
3 years ago
Math,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
umka21 [38]

Answer:

answer is c.

Step-by-step explanation:

the graph crosses the y-axis at (0,5) , increasing from x=-10 to x=2 and decreasing from x=2 to x=10

8 0
3 years ago
HEEEEEEEEEEEEEEEEELP MEEEEEEEEEEEEEEEEEEEEE
BlackZzzverrR [31]

Answer:

312.38

Step-by-step explanation:

first get the area of the circle which will be 490.625 then subtract the rectangle to get the round area with grass-290.625

then in that square there is a triangle covered with grass so get the area of the triangle-22.75 then add the area of the triangle to the rounded part with grass

7 0
3 years ago
⚠️⚠️Please help⚠️⚠️ Pip and Ali share S785 in the ratio Pip:Ali = 4:1.<br><br> Work out Pip's share.
oksano4ka [1.4K]
<h3>Answer:   $628 </h3>

==========================================================

Work Shown:

x = Ali's share

4x = Pip's share, because it is four times bigger due to the ratio 4:1

x+4x = 5x = total amount of money = 785

5x = 785

x = 785/5

x = 157 dollars is Ali's share

4x = 4*157 = 628 dollars is Pip's share

Note that 157+628 = 785 to help confirm the answer.

7 0
3 years ago
On Saturday, Conner drives 62 1/4 miles each hour. If he travels for 4 hours, how many miles does he travel altogether? please h
Taya2010 [7]
You would multiply 62 1/4 and 4. Which you cant do that so you would have to make it into a inproper fraction so that will be 249/4 times 4/1 then you can multiply which your answer would be 996 /4 and then in simplest form would be 249/1= 249
8 0
3 years ago
Read 2 more answers
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