At a dock on the east coast, low tide occurs at 3 pm wi th a water depth of 5 ft. The depth at high tide is 83 ft. High tide occurs every 6 hours. Explain how to find the sinusoidal function that models the depth in terms of time, x.

Answers

Answer 1

Answer:

The sinusoidal function that model the depth in terms of time, 'x', is presented here as follows;

f(x) = 39·sin((π/3)·x - π) + 5

Step-by-step explanation:

A sinusoidal function is given by the general function as follows;

y = A·sin(B·x + C) + D

Where;

A = The amplitude = ([tex]y_{max}[/tex] - [tex]y_{min}[/tex])/2 = (The high tide - The low tide)/2 = (83 ft. - 5 ft.)/2 = 39 ft.

The period, T = 2·π/b = 6 hours

∴ B = 2·π/T = 2·π/6 = π/3

D = The vertical shift = The low tide = 5 ft.

The horizontal phase shift, 'C', is given as follows;

3 hrs = -C/B = -C/(π/(3 hr))

C = 3 hrs × -(π/(3 hr)) = -π

∴ C = -π

y = 39·sin((π/3)·x - π) + 5

The sinusoidal function that model the depth in terms of time, 'x', is therefore given as follows;

f(x) = 39·sin((π/3)·x - π) + 5


Related Questions

Caden exercises daily by walking on a treadmill. He sets the machine so that he will walk at a steady rate of 3.6 miles per hour.

A. If t represents time in hours and d represents distance in miles write an equation that models the relationship between these variables

B. Use your equation to calculate the distance Caden will walk in 3 of an hour .

C. Use your equation to calculate how long it will take for Caden to walk 4.32 miles

(i have to write sumn for this part)​

Answers

Answer:

a) d = 3.6t

b) 10.8 miles

c) 1.2 hours

Step-by-step explanation:

For part a:

Slope of a line: y = mx + b

In this case, the equation would be: d = mt,

where m represents the speed Caden is walking at.

Note: b = 0 in this case because when Caden starts walking on the treadmill, he hasn't really covered any distance yet.

Therefore, plugging in a speed of 3.6 miles per hour, the equation is:

d = 3.6t

For part b:

This is a simple instance of plugging in 3 hours for our t value.

Therefore, d = 3.6 (3)

d = 10.8 miles

For part c:

In this case, we are given that d = 4.32 miles.

Therefore, 4.32 = 3.6t

Dividing both sides by 3.6, we get

t = 1.2 hours

How to solve the question above?

Answers

Answer:

66 years

Step-by-step explanation:

1) Convert 1.4426 * 10^4 into a number....

     = 14426

2) Divide

14426 / 218.58  

= 65.9987190045

About 66 years

That's all you write cause they asked u in years, no month or other stuff :)

Answer:

Approximately 66 years

Step-by-step explanation:

1.4426×[tex]10^{4}[/tex] mm is equal to 14,426mm

14,426mm÷218.58=65.998...≅66

HELP HELP HELP HELP HELP HELP!!!!!

Answers

Answer:

..

Step-by-step explanation:

Some one help please

Answers

Answer:

46in.

Step-by-step explanation:

2(14+9)

=28 + 18

=46in.

PLS HELP I'll GIVE BRAINLIEST.... A student walks x kilometers (km) along a straight path from point P to point Q. Then the student walks y km along a straight path from point Q to point R. What is the total distance, x + y, in km, that the student walks?

Answers

Answer:

5.5 km

Step-by-step explanation:

P.S - The exact question is -

As from the figure , we can see that

2 square = 1 km

Now,

Number of squares between P and Q = 4

Number of square between Q and R = 7

So,

Total number of squares = Number of squares between P and Q + Number of squares between Q and R

                                          = 4 + 7 = 11

⇒Total number of squares = 11

Now as

2 squares = 1 km

⇒ 1 square = [tex]\frac{1}{2} km[/tex]

⇒11 square = [tex]\frac{11}{2} km = 5.5 km[/tex]

∴ we get

total distance, x + y = 5.5 km

image inserted down below

Answers

Answer:

.002

Step-by-step explanation:

take the previous numbers in the pattern and divide by 3. Do this until you get to the 8th number.

The 8th number is 0.00274348422

round to the nearest thousandth for the final answer.

Hope This Helps!!


Eric is going to the store to buy groceries. He has a budget of at most $20. If he wants to buy milk for $5 and all of his favorite cereals for $4
per box, how many boxes of cereal can he buy?

Answers

Answer: 4 boxes of cereal

Step-by-step explanation:

Answer:

He can only by 3 boxes

Step-by-step explanation:

20-5=15   than you divid  15 by four    

Priya has a recipe for banana bread. She uses 7.5 cups of flour to make 3 loaves of banana bread. How much flour does Priya need to make 1 loaf of bread?

Answers

Answer:

It would take 2.5 cups of flour to make 1 loaf of bread.

Step-by-step explanation:

You would 7.5 divided by 3 to get how much it would take for 1 loaf of bread.

7.5/3 = 2.5

it would take 2.5 cups of flour to make 1 loaf of bread.

Shania’s workout playlist includes songs from four types of music. ● 32 country songs ● 48 rap songs ● 12 hip-hop songs ● 8 blues songs

Answers

Answer:

Hi there

Step-by-step explanation:

What exactly is the question being asked?

The song is 4 times as likely to be country than it is to be blues.

What is Probability?

Probability is simply the possibility of getting an event. Or in other words, we are predicting the chance of getting an event.

The value of probability will be always in the range from 0 to 1.

Total number of songs = 32 + 48 + 12 + 8 = 100

If she randomly plays a song from this list,

Probability that the song is country = 32/100 = 8/25

Probability that the song is rap = 48/100 = 12/25

Probability that the song is hip hop = 12/100 = 3/25

Probability that the song is blues = 8/100 = 2/25

Probability of country = 8/25 = 4 (2/25) = 4 times probability of blues.

Hence the correct option is B. The song is 3 times as likely to be country than it is to be blues.

To learn more about Probability, click :

https://brainly.com/question/11234923

#SPJ2

The complete question is below :

Shania’s workout playlist includes songs from four types of music.

32 country songs  

48 rap songs  

12 hip-hop songs  

8blues songs

Which is the best prediction of the type of music Shania will hear when she randomly plays a song from her playlist?

A The song is 6 times as likely to be blues than it is to be rap.

B The song is 4 times as likely to be country than it is to be blues.

C The song is 3 times as likely to be country than it is to be hip-hop.

D The song is half as likely to be rap than it is to be all other songs combined.

Terrence leaves a $3 tip at a restaurant. If that tip is equal to 15% of his total bill, what is his total bill?​

Answers

Answer:

$20

Step-by-step explanation:

To find the total bill, divide the tip amount by 0.15

3/0.15

= 20

So, his total bill was $20

Since the tip ($3) is 15% of the total bill, we can find Terrence’s total bill by dividing his tip with 15%.

3 ÷ 15%

= 3 ÷ 15/100

= 3 x 100/15

= 300/15

= 20

His total bill is $20

difference between algebreic expression and linear expression

Answers

In algebra, the highest power of the variable is known as the degree of the expression. Note: If the degree of an algebraic expression is 1 then it is called linear expression. If the degree of an algebraic expression is 2 then it is called quadratic expression.

What is the expanded form of this number?

14.702



1. (1×10)+(4×1)+(7×1100)+(2×11,000)

2. (1×10)+(4×1)+(7×1100)+(2×1100)

3. (1×10)+(4×1)+(7×110)+(2×11,000)

4. (1×10)+(4×1)+(7×110)+(2×1100)

Answers

Answer:

Step-by-step explanation:

[tex]14.702 = (1*10) + 4*(1) +(7*\frac{1}{10}) + (2*\frac{1}{1000})[/tex]

A new phone costs $450. There is a 40% discount on the price of the phone and an 8% sales tax on the discount price. What is the final cost of the phone after the discount and the sales tax?

Answers

The is I’ve been to the place 625

Answer:

it is 291.60

Step-by-step explanation:

ik this bc i had the question on my assignment

What's the largest 6-digit multiple of 5 that has all different digits? I'll give Brainliest to anyone who helps.

Answers

Answer:

987650

Step-by-step explanation:

The largest 6-digit number is:

999999

We need all digits different and the last one 0 or 5 because the number is the multiple of 5.

9876 are the first 4 digits and the last two 50 or 45, we'll chose 50 as 45 is smaller.

So the number is:

987650

Answer:

987650 hag1 !!!

A window in the shape of a parallelogram has the dimensions given.

What is the area of this window?




20 ft²

24 ft²

28 ft²

40 ft²

Answers

Answer:

A. 20ft

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

i Belive the answer is c

Mr. Greene purchased 6 adult movie tickets for $5730. How much does one adult move ticket cost?

Answers

Answer:

$955

Step-by-step explanation:

$5730 [tex]/[/tex] 6 = $955

PLEASE HELP ME. Problem is in the photo

Answers

Answer:

13cm

Step-by-step explanation:

Hope this helps! :)

HELP! WHY IS THIS TRIANGLE CONGRUENT! EASY PLS HELP​

Answers

Answer:

D. xz=yz, angle z is shared, wz=wz

Answer:

Side-angle-side postulate

Step-by-step explanation:

First,  you know that angle XZW = YZW because they are both 90 degrees.

Next, you know that side WZ = side WZ because of the reflexive property (they are the same side)

Lastly, you know that YZ = XZ because Z is the midpoint meaning it divides the entire thing perfectly in half

You have two sides and the included angle, so it is SAS.

b) Find the value of x and y from the given figure:​

Answers

y = 30
x = 60

The top and bottom are identical so you have 180-60=120 then divide by 2 to get the other sides

Answer:

y = 30

x = 150

The question is. The Scale of the map is 0:5 in: 20 mi. Find the actual distance corresponding to the map distance. 2 in.

Answers

Answer:

Step-by-step explanation:

I think you mean 0.5 in:20 mi

2 in × (20 mi)/(0.5 in) = 80 mi

2 inches on the map corresponds to 80 miles.

8 miles is the real distance that corresponds to the 2 inch map measurement.

Scaling and actual distance on maps.

We can utilize the map's scale to get the actual distance that corresponds to the 2 inch map distance.

The scale is presented as 0:5 in:20 mi, which implies that each 5 inches on the map corresponds to 20 miles in actual travel distance.

Let's establish a ratio to determine the actual distance:

5/2 = 20/x

If we cross-multiply, we obtain:

5x = 2(20)

5x = 40

When we multiply both sides by 5, we get:

x = 40 / 5

x = 8

Therefore, 8 miles is the real distance that corresponds to the 2 inch map measurement.

Learn more on scaling here: https://brainly.com/question/25722260

#SPJ2

Given the ordered pairs (-3,-2) and (4,-2), what is the horizontal distance between
the points?

Answers

Answer:

7 units apart.

Step-by-step explanation:

Find the difference of the x-values from the two points.

4 - (-3) = 4 + 3 = 7

The horizontal distance from the two points is 7.

Hope this helps.

Help. (Unprofessional people will be reported and so will wrong answers/people trying to be funny)

Answers

i think the answer is 10+3x8+5^2

Solve the rational equation. x+6/x-3=4/7

Answers

X=-18 ffxjckyxjxjttckyxjtxjck

Lena knit a total of 20 centimeters of scarfs over night. How many nights will Lena have to spend knitting in order to knit a total of 50 cm of scarfs. Assume the relationship is directly proportional.

Answers

Answer:

50cm of scarfs is equal to 2.5 nights of knitting.

Step-by-step explanation:

20cm= 1 night

10cm= 1/2 or 0.5 a night

40cm= 2 nights

50cm=2.5 nights

please help:)I’m not good at math and need to get this done ASAP

Answers

Answer:

First and third options are equivalent, second and fourth options are not equivalent.

Step-by-step explanation:

Remember the relation:

[tex]a^n*a^m = a^{n + m}[/tex]

and:

[tex](a^n)^m = a^{n*m}[/tex]

We have the expression:

[tex]7^{1/5}*49^{7/5}[/tex]

We know that 49 = 7*7

Then we can write the above relation as:

[tex]7^{1/5}*49^{7/5} = 7^{1/5}*(7^2)^{7/5}[/tex]

We can use the second relationship from the above ones and write this as:

[tex]7^{1/5}*(7^2)^{7/5} = 7^{1/5}*7^{2*7/5} = 7^{1/5}*7^{14/5}[/tex]

Now we can use the first relationship to get:

[tex]7^{1/5}*7^{14/5} = 7^{1/5 + 14/5} = 7^{15/5} = 7^3 = 343[/tex]

Then:

The first option is equivalent.

The second option is not equivalent

The third option is equivalent.

The fourth option is not equivalent.

Will give brainlist if answer is correct :) ​

Answers

Answer:

The answers C if you plug in the answer and re-write it 11.3.04 is correct.

Step-by-step explanation:

area of a circle is
pi(r)^2

the diameter is 6 so the radius is 3
plug in 3 for r
pi(3)^2 = 9pi = 28.26

since the rug is a semi circle, divide 28.26 in half which is 14.13

ANSWER: B. 14.13 ft^2

Round $94.10 to the nearest ten dollars​

Answers

Answer:

90

Step-by-step explanation:

five or more raise the score, four or less let it rest

Answer: $90

Step-by-step explanation:

94.10 round that to the nearest ones

94 now round that to the nearest tens

90

help, I don't understand ​

Answers

Answer:

y=3/4x+10

Step-by-step explanation:

lts take two points

(-4,7)

(0,10)

so slope is 3/4

so 3/4*-4+b= 7

-3+b=7

b=10

y= 3/4x+10

if my answer helps please mark as brainliest.

Answer:

y = 3/4 x + 10

Step-by-step explanation:

the b is 10 because y is 10 when x is 0

to find the x, plug in any variable from the chart into the equation y=mx+b

i used (-4, 7), so the equation would be 7=m(-4)+10

solve for x

-4m=7-10=-3

m=3/4

I need helppppppp TvT

Answers

Answer:          A.O.C                                                   U.S.C          

Wrote it: Benjamin Franklin                             James Madison

Ratified It: 13 colonies                                    the federalists

Delays:   the insistence of Maryland that     War

all states give up their western land

claims to the central government.

Type Gov. created: loose confederate        democratic republic

government

Type Cong. :Second Continental Congress      the Legislative Branch

Title Exe. : President for both columns

Power to National:                         enumerated powers

Powers to state:these included the “police powers” of health, education, and welfare.

3x – 4y = 0
x - y = 1

Answers

Answer:

x=4, y=3

Step-by-step explanation:

3x-4y=0

-3x+3y=-3

-y=-3

y=3

x-3=1

x=4

The answer is x=4, y=3
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