What is the length of the curve with parametric equations x = t - cos(t), y = 1 - sin(t) from t = 0 to t = π? (5 points)
A) 8
B) 4 times the square root of 2
C) 4
D) 8 times the square root of 2

Answers

Answer 1

Answer:

B) 4√2

General Formulas and Concepts:

Calculus

Differentiation

DerivativesDerivative Notation

Basic Power Rule:

f(x) = cxⁿf’(x) = c·nxⁿ⁻¹

Parametric Differentiation

Integration

IntegralsDefinite IntegralsIntegration Constant C

Arc Length Formula [Parametric]:                                                                         [tex]\displaystyle AL = \int\limits^b_a {\sqrt{[x'(t)]^2 + [y(t)]^2}} \, dx[/tex]

Step-by-step explanation:

Step 1: Define

Identify

[tex]\displaystyle \left \{ {{x = t - cos(t)} \atop {y = 1 - sin(t)}} \right.[/tex]

Interval [0, π]

Step 2: Find Arc Length

[Parametrics] Differentiate [Basic Power Rule, Trig Differentiation]:         [tex]\displaystyle \left \{ {{x' = 1 + sin(t)} \atop {y' = -cos(t)}} \right.[/tex]Substitute in variables [Arc Length Formula - Parametric]:                       [tex]\displaystyle AL = \int\limits^{\pi}_0 {\sqrt{[1 + sin(t)]^2 + [-cos(t)]^2}} \, dx[/tex][Integrand] Simplify:                                                                                       [tex]\displaystyle AL = \int\limits^{\pi}_0 {\sqrt{2[sin(x) + 1]} \, dx[/tex][Integral] Evaluate:                                                                                         [tex]\displaystyle AL = \int\limits^{\pi}_0 {\sqrt{2[sin(x) + 1]} \, dx = 4\sqrt{2}[/tex]

Topic: AP Calculus BC (Calculus I + II)

Unit: Parametric Integration

Book: College Calculus 10e


Related Questions

8.
The rate of change is constant in each table. Find the rate of change. Explain what the rate of change means for the situation.


A. 10; your car travels for 10 hours.

B. 212; your car travels 212 miles.

C. [tex]\frac{53}{1}[/tex], Your car travels 53 miles every 1 hour.

D. [tex]\frac{1}{53}[/tex]; Your car travels 53 miles every 1 hour.

Answers

Answer:

The answer is D) The car travels 53 mph(Miles Per Hours).

212/4 = 53

318/6 = 53

424/8 = 53

530/10 = 53

Step-by-step explanation:

Answer:

C)  rate of change is 53, your car travels 53 miles every 1 hour .

Step-by-step explanation:

Given : Table for time and distance.

To Find : The rate of change is constant in each table. Find the rate of change. Explain what the rate of change means for the situation.

Solution : We have given that Table for time and distance.

rate  of  change= (change in y)/(change in x) .

rate  of  change=(212)/(4) .

rate of change =  53.

rate  of  change= (318)/(6).

rate of change =  53

rate of change =  (424)/(8).

rate of change =  53.

rate of change =  (530)/(10) .

rate of change =  53.

Therefore, C)  rate of change is 53, your car travels 53 miles every 1 hour .

Please help me with this. Its easy but I'm du.mb.

Answers

Answer:

1. Greatest Common Factor

2. Fraction

3. Simplest Form

Step-by-step explanation:

1. Greatest Common Factor
2. Fraction
3. Simplest Form

One repair service company charges $27 for a house call plus
$10 per hour. A different company charges $15 for a house
call plus $13 an hour. After how many hours will the price for
the service call be the same for the two companies?

Answers

Answer:

4

Step-by-step explanation:

27+10(x)

15+13(x)

27+10(4)=67

15+10(4)=67

NEED HELP QUICK!!
Determine how much you would recieve in return for a 8 month, $500 loan to a friend if you charged the 3% annual interest. Show your work.

Answers

Answer: See explanation

Step-by-step explanation:

We are going to solve this by using the Simple interest formula which is:

= Principal × Rate × Time

= 500 × 3% × 8/12

= 500 × 0.03 × 2/3

= 10

Therefore, the interest will be $10 ane the total amount that'll be paid back will be:= $500 + $10 = $510

8. Subtact (7x – 10) – (-6x – 8).

Answers

Answer:

13x - 2

Step-by-step explanation:

7x - -6x = 7x + 6x = 13x.

-10 - -8 = -10 + 8 = -2

13x - 2

Answer:

13x - 2

Step-by-step explanation:

( 7x - 10 ) - ( -6x - 8 )

First, distribute the minus sign outside of the second parenthesis. Multiply each term within the second parenthesis by the minus sign.

( 7x - 10 ) + ( (-1)(-6x) + (-1)( -8))

Simplify,

( 7x - 10 ) + ( 6x + 8 )

Remove parenthesis,

7x - 10 + 6x + 8

Simplify, combine like terms,

7x - 10 + 6x + 8

13x - 2

what is the value of the expression 8-(2 cubed +48) divided by 8

PLEASE NO LINKS
ASAP

Answers

Answer:1.5

Step-by-step explanation:

8-(2^2+48)/8

8-32-6

8-38

-30

---

hope it helps

sorry if i'm wrong, I having a hard time processing things today

Write an equation to represent the following statement.
10 less than j is 35.

Answers

Answer:

j-10=35

Step-by-step explanation:

10 less than j means j-10 is 35

=> j-10=35

Answer:

f-10=35 thus meaning f=45

Step-by-step explanation:

f - 10 = 35

 +10   +10

    f=45

Hope you find this usefull

-Aj-;)

The product of two consecutive negative even integers is 24. Find the largest integer.

Answers

Answer:

-4

Step-by-step explanation:

ok negative times negative = positive

and factors of 24 are

1,2,3,4,6,8,12,24

4 x 6 are the two consecutive EVEN numbers

so turn it to negative

-4 x -6 = 24

The largest is -4

Sin(45^degrees)=13/x

Answers

Answer:

x = 18.38

Step-by-step explanation:

sin 45 = 13/x

0.7071 = 13/x

x = 18.38

no questions ignore the other one

Answers

Answer:

ok

Step-by-step explanation:

Answer:

alright lol

Step-by-step explanation:

This is the pond in a shape of a prism, it is completely full of water. Colin uses a pump to empty the pond. The level goes down by 20cm in the First 30min Work put how many minutes Colin has to wait for the pond to completely empty

Answers

Answer:

150 minutes

Step-by-step explanation:

P.S - The exact question is -

Given - This is the pond in a shape of a prism, it is completely full of

             water. Colin uses a pump to empty the pond. The level goes

             down by 20 cm in the first 30 min.

To find - Work put how many minutes Colin has to wait for the pond

               to completely empty.

Proof -

Given that,

Height of prism = 1 m

Also,

Base of the prism is trapezium and

Sides of the trapezium are 0.6 m and 1.4 m

Height of trapezium is 2 m

We know that,

Area of trapezium = [tex]\frac{1}{2}[/tex]× (sum of sides)× height

                             =  [tex]\frac{1}{2}[/tex]× (0.6 + 1.4)× 2

                             =  [tex]\frac{1}{2}[/tex]× (2)× 2

                             =  2 m²

⇒Area of trapezium = 2 m²

Now,

Volume of prism = Area of trapezium × height of prism

                          = 2 m² × 1 m

                          = 2 m³

⇒Volume of prism = 2 m³

Now,

Given that the level goes down by 20 cm in the first 30 min

We know

100 cm = 1 m

⇒1 cm = [tex]\frac{1}{100} m[/tex] = 0.01 m

⇒20 cm = 20×0.01 m = 0.2 m

⇒The level goes down by 0.2 m in the first 30 min.

Also,

we know that height of water = height of prism = 1 m

So, the remaining water left in the pond = 1 m - 0.2 m = 0.8 m

Also,

Volume of Remaining water = Area of trapezium × height

                                           = 2 m² × 0.8 m

                                           = 1.6 m³

⇒Volume of Remaining water = 1.6 m³

Now,

Volume of emptied water = Total Volume - Volume of Remaining water

                                       = 2 m³ - 1.6 m³

                                       = 0.4 m³

⇒Volume of emptied water = 0.4 m³

Now,

0.4 m³ water will be empty in 30 minutes

⇒ 1 m³ water will be empty in [tex]\frac{30}{0.4}[/tex] = 75 minutes

⇒1.6 m³ water will be empty in 1.6 × 75 = 120 minutes

∴ we get

The remaining water is empty in 120 minutes

So,

Total pond is empty in 120 + 30 minutes

⇒Total pond is empty in 150 minutes

11 with Exponent P 4

Answers

14,641 dndhshd jehfbd dhdhdh dhdhdh s

4 times (12-8) + 2^3. (2 to the 3rd power)

Answers

Answer:

It's 48. Heres why:

Step-by-step explanation:

Our equation, I believe, is 4[(12-8) + 2³]. We can do the operations in the parenthesis:

4[(4)+8] (12-8 = 4, and 2³ is 8). If we add 4 + 8, we get 12. Multiply 12 by 4, we get 48.

How do you solve x²-6x+34=0?

Answers

It would = -100











Hdjdjssjsjsnsndsjskskzndndsjs

Answer:

[tex]x = 3\pm 5i[/tex]

Step-by-step explanation:

Quadratic formula

[tex]x = \frac{6 \pm \sqrt{36-4(1)(34)}}{2(1)}[/tex]

There are no real solutions since the discriminant is negative.

Simplify this to get x = 3+5i, 3 -5i

I need help like I really dont know how to do this i need help fast

Answers

Answer:

44 units² or 44 units squared

There really isn't a preference of units, like inches or meters, so you can add that in.

Step-by-step explanation:

Haha, this is what we're doing in class!

Okay, so the formula for a trapezoid is A= ½ (b1+b2) h

14= b1

8= b2

Add them... You get 22. Multiply that by the height, which is 4. You should get 88. Then divide by 2. You should get 44.

Here's some helpful notes:

I hope this was helpful!

If the terminal point of ø is (-1,0), what is tan ø?

Answers

The SOH CAO TOA identity is used to determine the acute angles of a right triangles. The terminal point of ø is (-1,0), what is tan ø is 0


SOH CAH TOA identity

Given the terminal point (-1, 0), the value of tanø is expressed as:

tanø = opposite/adjacent

tanø = y/x

From the coordinate given:

x = -1

y = 0

Substitute

tanø = 0/-1
tanø  = 0

Hence the terminal point of ø is (-1,0), what is tan ø is 0

Learn more on terminal point here: https://brainly.com/question/1621860

#SPJ2

Select all the pairs that are alternate interior angles.

Answers

Answer:

angle 3 and angle 5

angle 2 and angle 8

Divide 6.1 and 51.24

Answers

Answer:

.119047619

hope this helped

Answer:

8.4

Step-by-step explanation:

51.24 ÷ 6.1 = 8.4

Although, if you were dividing 6.1 by 51.24, you would have a totally different answer, the answer to 6.1 ÷ 51.24 = 0.119047619047619.

PLEASE I NEED HELP ON This Please

Answers

I think it’s 33 hope this helps

Answer:

33

Step-by-step explanation:

The pattern is y = 5x + 8.

So, plugging in 5 for x gives you y = 5(5) + 8 = 33.

An Isoceles Triangle has base 6cm long and the opposite angle to the base is 50 degrees l. What is the size of the other angle?

Answers

Answer:

65°

Step-by-step explanation:

From the question,

The base angle of an isoceles triangle are equal.

Let the value of the base angles = x°

Sum of angle in a triangle = 180°

⇒ x°+x°+50° = 180°

⇒ 2x°+50° = 180°

⇒ 2x° = 180°-50°

⇒ 2x° = 130°

⇒ 2x°/2 = 130/2

⇒ x° = 65°.

Hence, the size of the other angles is 65°

I NEED TO REPLACE MY CONCRETE IN 7 YEARS. THE TOTAL COST IS $15,000, HOW MUCH DO I NEED TO SAVE ANNUALLY AT 5%.

Answers

9514 1404 393

Answer:

  $1,754.57

Step-by-step explanation:

If you put the amount in savings at the beginning of the year, then the balance after 7 years is ...

  A = P(1 +r)((1 +r)^7 -1)/r . . . . for payment P at annual rate r for 7 years

  15000 = P(1.05)(1.05^7 -1)/0.05 = 8.54911P

Then the amount P that needs to be saved is ...

  15000/8.54911 = P = 1754.57

You need to deposit $1,754.57 at the beginning of each year for 7 years to have a balance of $15,000 at the end of 7 years.

_____

If you wait until the end of the year to deposit the money, the amount will need to be 5% higher: $1,842.30.

Can I get help It’s Worth 58 Points if it’s the right answer I will pin you

Answers

The correct answer is x>0. This is because the circle is on 0, is hollow, and has an arrow that points right.

Directions: (a) Identify the parent function and (b) describe the transformations.

Answers

Parent function: y=2^x
Transformations:
Reflection over x-axis
Vertical stretch of 3
Right 1
Up7

Find the slope of the line in the graph.

Answers

Answer:

rise over run 2/10 siplified 1/5

Step-by-step explanation:


Which is the answer? :(

Answers

Answer:

the answer is :)

Step-by-step explanation:

Answer:

D because the triangle has to be congruent


can you guys help me with this equation plzzzzzz​

Answers

Answer:

b = 1/3

Step-by-step explanation:

Here, we want to solve for the value of b

From the question, we have that;

4^(3b-3) = 1/16

4^(3b-3) = 16^-1

4^(3b-3) = 4^2(-1)

4^(3b-3) = 4^-2

Since base are equal, equate the powers

3b - 3 = -2

3b = -2 + 3

3b = 1

b = 1/3

C = 2n + 1 i need help with this i have no clue how to do it

Answers

Answer:

3...?

Step-by-step explanation:

1+2=3

pick all that apply plz I need help​

Answers

Answer: D

Step-by-step explanation: You need to divide the figure into 2 parts. You need to ignore 13 m And use the other numbers. Figure A is 9x3x4 and Figure B is 7x4x4 because the other 4 is at the bottom. I hope this helps. Good luck!

Explain how many cupcakes Jasmine can make if she had 5 1/4 cups of frosting but needs 3/8 cups for each cupcake

Answers

Answer:

jasmine can make 14 cupcakes

Step-by-step explanation:

5 1/4 = 5.25

3/8 = 0.375

5.25/0.375 = 14

angle relations

A) 73°

B) 149°

C) 163°

D) 31°

Answers

Answer:

D

Step-by-step explanation:

those angles are vertical angles so they are congruent.

D 31 . I think. :).
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