A sound wave with amplitude xo is measured by an observer to have an intensity of I0 when the observer is standing 4.0 meters from the source. Which best describes the amplitude of a sound wave and distance from the source where it will be measured with an intensity of 16Io?

Answers

Answer 1

Answer:

C) Increase the amplitude to 2xo and stand 2 meters from the source.

Step-by-step explanation:

Correct on Edge


Related Questions


Dan received 45 out of 60 points on his science test. What percent did he receive on his test?

Answers

45/60 is 75%, it can also be simplified to 3/4

A carton holds 24 packets of biscuits. Each packet has 12 biscuits. How many biscuits can be packed in 45 cartons?

Answers

Answer:

12960 biscuits

Step-by-step explanation:

1 carton= 24 packets of biscuits

45 cartons= 45x24=1080 packets.

One packet = 12 biscuits

1080 packets- (1080x12)

=12960 biscuits

plz mark me as brainliest.

PLEASE ANSWER ASAP TIMED! A candle shop owner collected data on customers favorite scents as shown in the table. A customer is randomly selected. If the probabilities of a customer choosing floral and coconut as their favorite scents are the same what is the value of the missing probabilities? Inside the chart lavender 0.31 vanilla 0.18 cinnamon 0.23 floral? Coconut? The answer choices are 0.10 0.14 0.20 0.28

Answers

Answer: .14

Step-by-step explanation: 2020 edg

Answer:

.14

Step-by-step explanation:

I just took the test

You sold 500 shares of Intel for $26.75 per share. Your broker charges you a
commission of $2.75 per thousand dollars of stock bought or sold. How much
money will be credited to your account when you sell? (Remember, commissions
are subtracted out of your transaction.)

Answers

Answer: $13339.25

Step-by-step explanation:

Since 500 shares of Intel were sold for $26.75 per share, the total amount will be:

= 500 × $26.75

= $13375

Since the broker charges a

commission of $2.75 per thousand dollars of stock bought or sold, the amount charged by the broker on $13375 will be:

= $2.75 × 13

= $35.75

The amount that'll then be credited into ones account will be:

= $13375 - $35.75

= $13339.25

Given polynomial A and polynomial B below, which binomial factor do they have in common?

Answers

F. (n-4)
Polynomial A factors to (2n+9)(n-4)
Polynomial B factors to (n-6)(n-4)

traapezoid height 12 yd, bases 6yd and 8yd

Answers

Answer:

84 yards squared

Step-by-step explanation:

Use the formula- A= 1/2(b1 +b2)h

So 8+6=14 and 14x12 equals 168. That times 1/2 equals 168 :)

What shape can be created by the given net? triangular pyramid wedge triangular prism cone

Answers

Answer:

your awnser would be option A. triangular prism

Step-by-step explanation:

Answer:

triangular prism

Step-by-step explanation:

Round 2.261 to the nearest half.

Answers

Answer:

2.0

Step-by-step explanation:

Should be right

Could somebody please help

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

Each point moves to 3 times its original distance from the blue dot. Each length is 3 times as long as the original.

A runner ran of a 5 kilometer race in 21 minutes. They ran the entire race at a constant speed.
How long did it take to run the entire race?
How many minutes did it take to run 1 kilometer? ​

Answers

the answer is 6 minutes and 46 seconds

3. The photo below is being enlarged to form
a 16-by 20- inch print. What is the scale
factor being used to enlarge it?
4 in
5 in

Answers

Answer:

4 in

Step-by-step explanation:

Given the following data;

Length = 16 in

Width = 20 in

To find the scale factor;

Scale = 16:20

Dividing by 4, we have;

Scale = 4:5

Therefore, the scale factor is 4 in.

Scale = scale factor * ratio

Scale = 4 * (4:5)

Scale = 16:20

NO LINKS PLEASE
what is the slope of PQ?

Answers

Answer:

-2/3

Step-by-step explanation:

-1.5 - 0.5 / 2.5 - (-0.5)

= -2/3

need help asap i have no clue how to solve this

Answers

Answer:

c and

28.57%

Step-by-step explanation:

count how many number fall into each category

50-59 has 1

60-69 has 2

70-79 has 4

80-89 has 4

and 90-99 has 3

So the last histogram fits this data

to find the % of those that are between 70-79, take the total number of items that fit into that category (4) and divide by the total number of items (14)

4/14=.2857 --> turn to a percent .2857*100=  28.57%

Complete the table values for y=1/2x cubed -2x+1

Answers

Answer:

y = x 4 − 6

y = 1 x − 2

Step-by-step explanation:

Hope I answered the question right!!

NO LINKS OR YOU WILL BE REPORTED ok thank you

can u answer this ​

Answers

Answer:

it's B

Step-by-step explanation:

It's definitely B

Help please!!!!!!!!!! Need ASAP!! Thank you!

Maria can stuff envelopes twice as fast as her friend James. Together they can stuff 6750 envelopes in 4.5 hours. How long would it take each of them working alone? Which of the following equations could be used to solve this problem?

Answers

I thinks it's the last one

hope this helps

Answer:

B. 4.5/t + 4.5/(2t) = 1

Step-by-step explanation:

Work = rate*timeMaria's rate = 6750/tJames's rate = 6750/2t

Their rate when working together:

6750/t + 6750/(2t) = 6750/4.5 ⇒ 1/t + 1/(2t) = 1/4.5 ⇒4.5/t + 4.5/(2t) = 1

Correct choice is B

Mickey exercises 1/4 hour every day.
How many hours does he exercise in 8 days?

Answers

Answer: You multiply 8 x 3/4=24/4.  Then you simplify your answer and it is 6 hours.  24/4 is division 24 divided by 4 equals 6.

Step-by-step explanation: Or, you can change 3/4 to a decimal which is .75.  Then you multiply .75 x 8 and the answer is 6.00 which is 6 hours because you do not use the zeros after the decimal point.

Answer:

2 hours

Step-by-step explanation:

You can just multiply 1/4 by 8. You're simply just adding on 1/4 8 times, and that is the same as multiplying.

pls help
its was on khan academy
i will mark u brainiest!!!

Answers

Answer:

[tex]14 units[/tex]

Step-by-step explanation:

[tex]Solution:-[/tex]

[tex]A(5,1)B(7,1)[/tex]

[tex]\sqrt{(x_{1}-x_{2} ) ^{2}(y_{2} -y_{1}x^{2} }[/tex]

[tex]AB=\sqrt{(7-5)^{2} +(1-1)^{2} }[/tex]

[tex]= \sqrt{2^{2} } =2[/tex]

[tex]BC=\sqrt{7-7^{2}+(6-1)^{2} }[/tex]

[tex]=\sqrt{5^{2} } =5[/tex]

[tex]perimeter=2(AB)+2(BC)[/tex]

[tex]= 2(2)+2(5)\\[/tex]

[tex]= 4+10= 14[/tex]

[tex]-----------[/tex]

hope it helps...

have a great day!!

Which letter represents the maximum of the data set on the box plot? A B C E 25 30 35 40 45 50
O B
OC
OD
O E
please hurry​

Answers

Answer:

E

Step-by-step explanation:

The maximum of the data set is the point to the far right.

Point E is the maximum

Point A is the minimum

Point C is the mean

14. On Monday, a work group eats at Ava's café,
where a lunch special is $8 and a dessert is
$2. The total is $108. On Friday, the group
eats at Bo's café, where a lunch special Is
$6 and a dessert is $3. The total is $90. Each
time, the group orders the same number of
lunches and the same number of desserts.
How many lunches and desserts are
ordered?
what the x and y value.

Answers

Answer:

no. who eat lunch special = 12

no. who eat dessert = 6

Step-by-step explanation:

Let x = no. who eat lunch special

y = no. who eat dessert

(1)    8x + 2y = 108             (2)    6x + 3y = 90

 Divide thru by 2                         Divide thru by 3

      4x + y = 54                          2x + y = 30

     -2x - y = -30

       2x = 24

         x = 12                               2(12) + y = 30

                                                    24 + y = 30

                                                            y = 6

                                                 

help me and I’ll give you brainliest

Answers

Answer:

8

Step-by-step explanation:

It's a ratio.

h/15=24/45

cross-multiply

45h=360

h=8

8 8 8 8 8 8 8 8 8 8 8 8

Please answer this with solution

Non sense + No solution = REPORT​

Answers

Answer:

1. mBC = 60 degree
2. BOC = 85 degrees
3. mBC = 75 degrees
4. AOD = 60 degrees

107 > 45+ y hurry pls

Answers

Answer:

C. y<62

Step-by-step explanation:

107<45+y

(take 45 from both sides)

62<y, or y>62

The answer of the given inequality is 107>45+y is y<62.

We have given that inequality

107<45+y

What is inequality?

Inequality is a relation that makes a non-equal comparison between two numbers or other mathematical expressions. It is used most often to compare two numbers on the number line by their size.

107<45+y

(take 45 from both sides)

Therefore the solution of inequality  62<y, or y>62.

To learn more about the inequality visit:

https://brainly.com/question/24372553

#SPJ2

which of the following describes the graph below

Answers

Answer:

b

Step-by-step explanation:

Please help I’ll mark you as brainliest if correct!

Answers

6.54 ft. Is the closest

Answer:

option 4 is definitely the answer

-2 x -4 =
please help

Answers

Answer:

8

Step-by-step explanation:

Two negatives mean you make a positive and 4 x 2 is 8

Answer:

8

Step-by-step explanation:

Negative times negative = positive

Cancel out the negative symbol

Now multiply: 2*4=8

38%
Find the whole number that satisfies all of the following conditions.
• It is a whole number between 1 and 100 inclusive.
• 10% of the number is greater than 1 but less than 7.
of the number is a square number.
• The number is not a multiple of 6.
.
1/3

[3]
Note: Make your final answer clear by writing 'The number is ...'

Answers

(the question is formatted a bit weird, but I'm assuming the third statement is meant to be '1/3 of the number is a square number'. If not, let me know and I'll adjust my answer accordingly)

Answer:

The number is 27

Step-by-step explanation:

Let the number be called x.

10% of x is greater than 1 but less than 7. Written mathematically, this is 1<0.1x<7. Multiply this by ten to get 10<x<70.

1/3 of x is a square number. The squares 4, 9, and 16 are the only squares that satisfy this statement, because the if the square was 1, x would be 1, which doesn't fit x>10, and if the square was 25 or higher, x would be greater than 70, which doesn't fit x<70.

x isn't a multiple of six. If the square is 4, x is 12, which is a multiple of six so this doesn't work. If the square is 16, x is 48, which is a multiple of six too, so this doesn't work. But if the square is 9, x is 27, which isn't a multiple of six and satisfies the statement.

Double check that x=27 is a valid answer.

Is 27 a whole number between 1 and 100? Yes

Is 10% of 27 greater than 1 and less than 7? Yes (10% of 27 is 2.7)

Is 1/3 of 27 a square number? Yes (1/3 of 27 is 9, which is the square of 3)

Is 27 not a multiple of 6? Yes (27 isn't divided evenly by 6)

Therefore, the number is 27.

please help me this is confusing please add an explanation to it

Answers

Answer:

2

Step-by-step explanation:

As it would look better.

1 would make the graph too big

12 would be useless as there are no "answers" more than 12

10 would be useless too as the biggest number used is 10. therefore, 5, 7 would be cramped and too hard to figure out.

Pls help I’ll brainlest and add extra points

Answers

Answer:

L

Step-by-step explanation:

( 9 − p ) ( 9 − q ) ( 9 − r ) ( 9 − s ) = 9. What is the value of p + q + r + s ?

Answers

p(r + s) = 5 and q(r + s) = 3.

by simply addind those two equations.

p(r + s) + q(r + s) = 5 + 3

(p + q) (r + s) = 8                 Statement #2: (p + q) = (r + s)

(p+q)×(r+s)=(p+q)×(p+q)=(p+q

it's been said it's not allowed us to arrive at a specific numerical value. The statementby itself inadequate.

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