Sound waves are emitted from a fishing boat. Some of the sound waves are reflected by fish and detected back at the boat.The shortest time between the sound waves being emitted and detected is 0.26 s. The speed of sound in water is 1500 m/s.A) Calculate the distance between the boat and the nearest fish.

Answers

Answer 1

Answer:

195 m.

Step-by-step explanation:

The time for the  sound waves to reach the fish is 0.26/2 = 0.13 seconds.

Distance = speed * time

= 1500 * 0.13

= 195 m.


Related Questions

Please help me b4 11:59 7-1-20

Answers

Answer : The length of QT is 19.

Step-by-step explanation :

As we are given:

Length of RT = 11

Length of RS = 8

As we are given that R is the mid-point of line QS. That means,

Length of RS = Length of QR = 8

Now we have to calculate the length of ST.

Length of ST = Length of RT - Length of RS

Length of ST = 11 - 8

Length of ST = 3

Now we have to calculate the length of QT.

Length of QT = Length of QR + Length of RS + Length of ST

Length of QT = 8 + 8 + 3

Length of QT = 19

Therefore, the length of QT is 19.

Each term in the sequence below is 9 more than 1/3 the previous term. What is the value of y-x?
81, 36, x, y,...
Plz explain

Answers

36/3=12. 12+9=21. X=21. 21/3=7. 7+9=16. Y=16. 21-16=5

Answer:

y - x = - 5

Step-by-step explanation:

Applying the rule gives

x = [tex]\frac{1}{3}[/tex] × 36 + 9 = 12 + 9 = 21

y = [tex]\frac{1}{3}[/tex] × 21 + 9 = 7 + 9 = 16

Thus

y - x = 16 - 21 = - 5

Find the equation of a line that passes through the point (3,2) and has a gradient of - 1/3
Leave your answer in the form y=mx + c​

Answers

Answer:

  y = -1/3x +3

Step-by-step explanation:

When given a point and slope, it is convenient to start with a point-slope form of the equation of a line.

  y = m(x -h) +k . . . . . line with slope m through point (h, k)

  y = (-1/3)(x -3) +2 . . . line with slope -1/3 through point (3, 2)

  y = -1/3x +3 . . . . . . . simplified to slope-intercept form

Use slope-intercept form, y = mx + b, to find the value for the y-intercept (b) of a line that has a slope of 6 and passes through the point (3, –5). b = What is the new equation written in slope-intercept form?

Answers

Answer:

y = 6x - 23

Step-by-step explanation:

Step 1: Write out known variables

y = 6x + b

Step 2: Find b

-5 = 6(3) + b

-5 = 18 + b

b = -23

Step 3: Write it all out

y = 6x - 23

And we have your equation!

Answer:

here is the answer from edge

Step-by-step explanation:

Which investment account can be used to save for post-secondary education? traditional IRA, 403(b), flexible spending account (fsa), 529 plan, or 401(k)

Answers

Answer:

529 plan

Step-by-step explanation:

The 529 plan investment account is a type of account used to save for future education purposes and are sponsored by educational institutions and the state. They are of two types, The prepaid tuition plan and the education saving plan. The prepaid tuition plan is used to pay for future tuition fee at present rates while the education saving plan are used to pay for qualified education expenses

Answer:

529 plan

Step-by-step explanation:

A 529 college savings plan works much like a Roth 401(k) or Roth IRAby investing your after-tax contributions in mutual funds, ETFs and other similar investments. Your investment grows on a tax-deferred basis and can be withdrawn tax-free if the money is used to pay for qualified higher education expenses.

Which statement best explains the relationship between lines CD and FG?


They are perpendicular because their slopes are equal.

They are perpendicular because their slopes are negative reciprocals.

They are not perpendicular because their slopes are equal.

They are not perpendicular because their slopes are negative reciprocals.

Answers

Answer:

(B) They are perpendicular because their slopes are negative reciprocals

Step-by-step explanation:

B. They are perpendicular because their slopes are negative reciprocals.

Could someone help me and explain?

Answers

Answer:

length 3 inwidth 2 in

Step-by-step explanation:

Since none of the answer choices match the drawing of the gardener, we assume the question is referring to the drawing of the partner.

The gardener's drawing is 1/4 of actual size. So, in terms of the gardener's drawing, actual size is ...

  gardener's drawing = (1/4)actual size

  actual size = 4(gardener's drawing)

__

The partner's drawing is 1/20 of actual size, so is ...

  partner's drawing = actual size/20 = (4(gardener's drawing))/20

  partner's drawing = (4/20)(gardener's drawing)

  partner's drawing = (gardener's drawing)/5

__

Then the {length, width} of the partner's drawing are ...

  partner's drawing {length, width} = {15 in, 10 in}/5 = {3 in, 2 in}

The partner's drawing has a length of 3 inches and a width of 2 inches.


Evaluate 3X +4Y, when X = -2 and Y = 4

Answers

Answer:

10

Solution,

X=-2

y=4

Now,

3x+4y

[tex] = 3 \times ( - 2) + 4 \times 4 \\ = - 6 + 16 \\ = 10[/tex]

hope this helps...

Good luck on your assignment..

Answer:

Ok,you just need substitute the x for the value given\

=3x+4y

=3(-2)+4(4)  Multiple the values

=-6+16        Just add the values  

=10             So,this is the answer

I hope this help you :)

If you need some help more just let me know...

what is the midpoint of the line segment with endpoints (3.2,2.5) and (1.6,-4.5)?

Answers

Answer:

Midpoint: (2.4, -1)

Step-by-step explanation:

Midpoint Formula: [tex](\frac{x1+x2}{2} , \frac{y1+y2}{2} )[/tex]

With that in mind,

(3.2 + 1.6)/2 = 2.4

(2.5 - 4.5)/2 = -1

Answer:

(2.4, -1)

Step-by-step explanation:

To find the x coordinate of the midpoint, average the x coordinates

(3.2+1.6)/2 = 4.8/2 = 2.4

To find the y coordinate of the midpoint, average the y coordinates

(2.5+-4.5)/2 = -2/2 = -1

(2.4, -1)

I need helppp fastttt!

Answers

Answer:

The cube root of 1331 is 11.

Step-by-step explanation:

11 times 11 times 11 = 1331

Answer:

11

Step-by-step explanation:

=> [tex]\sqrt[3]{1331}[/tex]

We'll prime factorize it!

=> [tex]\sqrt[3]{11*11*11}[/tex]

=> [tex]\sqrt[3]{11^3}[/tex]

Since, [tex]\sqrt[3]{} = ^{1/3}[/tex]

=> [tex]11^{3*1/3}[/tex]

=> [tex]11^{3/3}[/tex]

=> [tex]11^1[/tex]

=> 11

find hcf using division algorithm 867and 255

Answers

Answer :

By using EDL

a=bq+r

where a is > b

so a =867 and b=255

867=255×3+102

here r≠0 so a=255 and b=102

255=102×2+51

here r≠0 so a=102 and b=51

102=51×2+0

here r=0

so, Hcf of (867,255) is =51

Step-by-step explanation:

Hope it works out!!

Answer:

[tex]51[/tex]

Step-by-step explanation:

[tex]a=bq+r[/tex]

Where [tex]a > b[/tex]

[tex]867=255 \times 3+102[/tex]

[tex]255=102 \times 2+51[/tex]

[tex]102=51 \times 2+0[/tex]

Hcf of 867,255 is 51

What is the measure of angle O in parallelogram LMNO? will give brainiest

Answers

Answer:

m∠O = 105°

Step-by-step explanation:

Step 1: Set up equation

x + 40 + 3x = 180

Step 2: Solve

4x + 40 = 180

4x = 140

x = 35

Step 3: Plug in

3(35) = 105°

And we have our answer!

Answer:

C. 105°

Step-by-step explanation:

Can you help me with this question

Answers

Answer:

-1.67

Step-by-step explanation:

If an image of a triangle is congruent to the pre-image, what is the scale factor
0 0.1
1/2
2
1
10

Answers

Scale factor is ( 1 )
because the triangle and image are congruent ( same shape and size).

Answer:

The answer is C:  1

Step-by-step explanation:

True or False: You can draw a quadrilateral with no parallel lines and at least one right angle.

Answers

Answer:

True.

Step-by-step explanation:

The answer is true. All you need is one 90 degree angle, two 50 degree angles, and one 170  degree angle. This creates a weird looking shape that is a quadrilateral with no parallel lines and at least one right angle.

Please mark me as brainliest. I need to rank up.

The correct answer is true.

The average reading score on a certain test is given by y=0.150x +255.34 where x is the number of years past 1970 . In what year would the average reading score be 259.24 if this model was accurate

Answers

Answer:

The average was 259.24 in 1996.

Step-by-step explanation:

In order to find the year that the average, "y", is 259.24 we need to apply this value on the given expression, as done below:

[tex]259.24 = 0.15*x + 255.34\\0.15*x = 259.24 - 255.34\\0.15*x =3.9\\x = \frac{3.9}{0.15}\\x = 26[/tex]

The average was 259.24 after 26 years, therefore it was in 1996.

у = 3х +8
What is the y-intercept?

Answers

Answer:

(0,8)

Step-by-step explanation:

To find the y intercept set x = 0 and solve for y

y = 3x+8

y = 0+8

y =8

(0,8)

Answer:

8

Step-by-step explanation:

Stats question two way tables

Answers

Answer:

Step-by-step explanation:

Not liking rock mostly doesn't effect not liking just rap, since half like both rock and rap.

Though, there are 2 more people that like just rock compared to just rap, so you are more likely to like just rock.

Additionally, if you don't like rock, there is a 31.4 % that you don't like rap as well, since 17 people like neither.

Graph y≤−2/3x+6. PLEASE I NEED HELP!!!!:((

Answers

Answer:

First graph -2/3x+6 (Slope of -2/3)

(Y intercept of 6)

Then shade everything under that line

i dont get itttttttttttttttttttttttt

Answers

Answer:

the last option, all nums greater than -3

Step-by-step explanation:

PLEASE HELP!!!!!!!!!!!!!!

Answers

Answer:

24

Step-by-step explanation:

36:45 = x:30

36 x 30 = 1080

1080/45 = 24


Maria measured a centipede that was 1 1/12 inches long. Jerome measured a centipede that was 11/12 of an inch long. How much longer was Maria's centipede than Jerome's?
A 1/12 of an inch
B 1/6 of an inch
C 1/3 of an inch
D 1 inch

Answers

Answer:

1/6

Step-by-step explanation:

The centipede that Maria measured was 1 1/12 inches long. If you convert this to an improper fraction it is equal to 13/12 inches. Now to find how much longer Maria's centipede was than Jeromes, you just take 11/12 and minus it from 13/12 which is equal to 2/12 of an inch, which then simplifies to 1/6 of an inch.

Please help 100 points. i need to finish this like in 20 min Assignment: The Law of Large Numbers Investigation Mrs. Hudson has made another assignment that Karen and Dakota are excited to try. To conduct your own experiment, you will need dice and a place to record your results. In this assignment, you will first calculate the theoretical probability for rolling a sum of 7. Then, you will roll the dice and add the numbers shown, recording your results as you go. Calculate the experimental probability for rolling a 7 after the 1st, 10th, and 100th rolls. Compare these results with the theoretical probability of rolling a sum of 7. How does this comparison change as the number of trials increase? 1. List out the sample space for the experiment and then calculate the theoretical probability. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 2. Roll the dice. Record your results in the table. Calculate the experimental probability for rolling a sum of 7 after the 1st, 10th, and 100th rolls. Experimental Probability after Roll #1: ___________________________ How does the experimental probability compare to the theoretical probability after 1 roll? _________________________________________________________ _________________________________________________________ Experimental Probability after Roll #10: __________________________ How does the experimental probability compare to the theoretical probability after 10 rolls? _________________________________________________________ _________________________________________________________ Experimental Probability after Roll #100: _________________________ How does the experimental probability compare to the theoretical probability after 100 rolls? _________________________________________________________ _________________________________________________________ Tally your results in the table. Sum Results 2 3 4 5 6 7 8 9 10 11 12 Analyze your findings. 3. Compare the results with the theoretical probability of rolling a sum of 7. How does this comparison change as the number of trials increase? Use four of your vocabulary words in your explanation. __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________ __________________________________________________________

Answers

The experimental probability is what you actually rolled

24/60 = 2/5 = 40%

The theoretical probability is what we expect to happen

=number of even numbers / total number of numbers

3/6 = 1/2 = 50%

A rectangle is 32m by 8m is similar to a rectangle 4m by x m.
Find the 2 possible values of x :
x= ? m
x= ? m

(help assssssap )

Answers

Answer:

x = 1

Step-by-step explanation:

x/4 = 8/32

x = 1

Best Regards!

Answer:

X=1 m

X= 0.81 m

Step-by-step explanation:

for the first X you must put in a proportion like this

38:8=4:X

X=(4×8)/38= 1 m

for the second one's you could use Pythagorean theorema

finding the diagonal of the biggest rectangle and you must put the diagonals in proportion whit the 2 sides

32:4=Y:32.9

Y=(32×32.9)/4=4.1 m (diagonal of the smallest rectangle)

[tex] } \sqrt{ {4.1}^{2} - {4}^{2} } = 0.81m[/tex]

use an other time the Pythagorean theorema and you find the other option


The formula for the volume, V, of a cone having the radius, and the helght, h, is shown below.
V +22
Write the formula to calculate the height, h.

Answers

Answer:

h = 3V/πr^2

Step-by-step explanation:

[tex]IF ;\\V = \frac{1}{3} \pi r^2 h\\Make ; h , subject-of-the-formula\\3V = \pi r^2 h\\Divide-both-sides-of-the-equation -by \pi r^2\\\frac{3V}{ \pi r^2} = \frac{ \pi r^2 h}{ \pi r^2 } \\\frac{3V}{ \pi r^2} = h[/tex]

Answer:

Step-by-step explanation:

the answer is

multiply pie 4 square (3.1416 )(4/2)(9.95)= 500.14155 then it says to round to the nearest decimal for the answerV= 9.95 that is the answer to to question

The tires of a go-kart are 1 m1 \text{ m}1 m1, start text, space, m, end text in circumference. The tires revolve 15151515 times per second. What is the distance the go-kart travels in 40404040 seconds?

Answers

Answer:

600m

Step-by-step explanation:

Distance traveled = speed*time taken

The total distance traveled around the tires is the circumference.

If the tire of a go-kart with circumference of 1m revolves 15 times per second, the speed of the go-kart will be 1*15 = 15m/s

Given the time taken by the go-kart to travel round to be 40 seconds;

Distance traveled by the go-kart = 15*40 = 600m

Find the area. Use Pi = 3.14 a. 15.1976 cm2 c. 13.816 cm2 b. 6.908 cm2 d. 60.7904 cm2

Answers

Answer:

A.

Step-by-step explanation:

Diameter = 4.4 cm

Radius = 2.2 cm

Now

Area of the circle = πr²

= (3.14)(2.2)²

= (3.14)(4.84)

= 15.1976 cm²

Answer:

A.

Step-by-step explanation:

D=4.4, therefore, the Radius is equal to 2.2, half of the diameter.

The formula for Area:

A=pir^2.

A=(3.14)(2.2)^2

A=(3.14)(4.84)

A=15.1976

A=15.1976, which is identical to option A.

Can I get help with this?

Answers

Answer:

AC = 120

Step-by-step explanation:

<D = 360 - 95 - 145

D =120

Central Angle = Intercepted Arc

AC = <D = 120

BRAINLIEST***

Given right triangle MNO, which represents the value of tan(M)?"
OM/MN
MN MO
ON MN
MN / ON​

Answers

Answer:

C, ON/MN

Step-by-step explanation:

Since tan is opposite/adjacent, and the opposite of angle M is NO, then NO must be the numerator. The only answer with this as the numerator is C.

Answer:

C, ON/MN

Step-by-step explanation:

JUST TOOK THE QUIZ

What is a reasonable estimate of the rate of change for the interval 300 <= x <= 400?

Answers

Answer:

The correct option is;

B. -2

Step-by-step explanation:

From the graph, we have;

At x₁ = 300, y₁ = 800

At x₂ = 400, y₂ = 600

The formula for the slope, m, of a graph is given as follows;

[tex]m = \dfrac{y_2 - y_1}{x_2 - x_1} = \dfrac{600 - 800}{400 - 300}= \dfrac{-200}{100} = -2[/tex]

Therefore, a reasonable estimate of the rate of change for the interval 300 ≤ x ≤ 400 is -2 which is a negative slope as expected as the y-coordinate values, which is the value of the function, decreases while the x-coordinate values which is the independent variable increases as we go from 300 ≤ x ≤ 400.

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