Mathematics College

Why are there two different types of area formulas for parametric equations?

Answers

Answer 1

Step-by-step explanation:

The first equation is the surface area of a curve that's been rotated about the x-axis.

The second equation is the area between a curve and the x-axis.

Related Questions

A mason is forming a rectangular floor for a storage shed.
The perimeter of the rectangle is 44 feet.

Answers

Perimeter is the lengths of the edges added up. And if the shape is a rectangle, there are 4 edges so we divide by 4. 44/4=11. each of the four sides are 11 feet long.

width=11

length=11

area=width*length=121

Evaluate: 3² × (-2)³ × 5

Answers

Answer:

360

Step-by-step explanation:

3^2 × (-2)^3 × 5= 9 × 8 × 5= 72 × 5= 360

Thank you ☺️☺️

Determine the intercepts of the line.

y- intercept (_,_)
x- intercept (_,_)

Answers

Answer:

Therefore, the y-intercept is (0,2.5) and x-intercept is (3.5,0) .

Step-by-step explanation:

Intercept means the line touching the axis. As you look at the graph, y-intercept (line touching y-axis) is (0,2.5) and the x-intercept is (3.5,0) .

Take note :

When finding y-intercept, x-coordinate must be 0.

When finding x-intercept, y-coordinate must be 0.

16 x 21 + 5

pls answer

Answers

Answer:

341

Step-by-step explanation:

Answer:

341

Step-by-step explanation:

X+Y=4.25
16.90X+4Y=36.35
What are the values of X and Y

Answers

Answer:

Y = 2.75X = 1.5

Step-by-step explanation:

X+Y=4.25

16.90X+4Y=36.35

That means that;

X = 4.25 - Y

Substituting X into the second equation is;

16.90 * (4.25 - Y) + 4Y = 36.35

‭71.825‬ - 16.90Y + 4Y = 36.35

‭71.825‬ - 12.90Y = 36.35

‭71.825‬ - 36.35 = 12.90Y

Y = ‭35.475‬/12.90

Y = 2.75

X = 4.25 - Y

= 4.25 - 2.75

= 1.5

From the computation done, the value of X is 2.75 and Y is 1.5.

The following information can be depicted:

X + Y=4.25 .... i

16.90X + 4Y=36.35 ..... ii

From equation i

X = 4.25 - Y

We'll substitute X into the second equation and this will be:

16.90(4.25 - Y) + 4Y = 36.35

‭71.825‬ - 16.90Y + 4Y = 36.35

‭71.825‬ - 12.90Y = 36.35

Collect life terms

‭71.825‬ - 36.35 = 12.90Y

Y = ‭35.475‬/12.90

Y = 2.75

Since X = 4.25 - Y

X = 4.25 - 2.75

X = 1.5

Learn more about equations on:

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You deposit $400 in an account that pays 2.4% annual interest compounded monthly a. When does your balance first exceed $500? after years and months b. Use the compound interest formula to find the balance after this amount of time. The balance is $

Answers

Answer:

The answer is $88

Step-by-step explanation:

The Math.random () function returns a floating-point, pseudo-random number in the range 0–1 (inclusive of 0, but not 1) with approximately uniform distribution over that range — which you can then scale to your desired range.

The triangles below are congruent. Which of the following statements must be true?

Answers

Answer:

BC=FD

Step-by-step explanation:

Answer: I agree it’s BC congruent to FD

Step-by-step explanation:

Chelsea
Enter in the missing numbers to create equivalent ratios.
5
2
4
25
20
Enter in the missing numbers

Answers

Step-by-step explanation:

The way to find missing numbers in equivalent ratios is to multiply the means (the first denominator and the second numerator) and multiply the extremes (the first numerator and the second denominator). It sounds really complicated, but it is quite simple =)

2/5 = x/10

The means in this equivalent ration are 5 and x. The extremes are 2 and 10.

5x = 20

Now solve =)

x = 4

That was pretty simple. Let's move on to the next one. Do exactly the same thing here:

4/10 = 6/x

60 = 4x

15 = x

That was pretty simple, too! Keep going!

6/15 = x/25

15x = 15

x = 10

All of these should be equal, so check them by dividing:

2/5 = 0.4

4/10 = 0.4

6/15 = 0.4

10/25 = 0.4

They all check out, so these are your answers: 2/5, 4/10, 6/15, 10/2

pls give brainest

Frank has 6 blocks of cheese. How many pizzas can he make if each pizza needs 4/3 a block of cheese?

Answers

Step-by-step explanation:

So if you need to use 4/3 of a cheese block that is 1 1/3 of those cheese blocks so keep adding until you get to 6 blocks of cheese or just about 6 blocks

are 8x2y and-5yx2 like terms?

Answers

You can add them together... 8+2=10 and -5y+2y= -3y. So i think they would be like terms yes.

If Tori has 100 apples, and Peppa has 200, Alex had 300, and Lorenzo has 3 times the amount they did combined, How many apples does Lorenzo have?

Answers

Answer:1,800 apples

Step-by-step explanation:100+200+300 is 600 and when you multiply that times 3 you get 1,800.

Answer:

1,800.

Step-by-step explanation:

Add all of the apples together and multiply by 3.

Can someone help me

Answers

Answer:

with what?

Step-by-step explanation:

I need help with 1-19!! Please help me!!!

Answers

Answer:

I need help with1-9!! please help me!!

Is -15 less than -18

Answers

Answer:

No it is more

Step-by-step explanation:

pls Help brainly I’ll give u brailest

Gracie, Mary, and Nancy each have a small collection of seashells. Gracie has 5 more than times the number of shells Mary has. Nancy has 1 more than times the number of shells Mary has. Gracie and Nancy have the same number of shells. If x is the number of shells Mary has, identify the equation that represents this situation and identify its solution.

Answers

The answer is x=24
Explanation: none

The dinner bill for four people came to $108.60. If they plan to leave a 20% tip and split the bill equally, how much will each person pay?

Answers

Answer:

32.15

Step-by-step explanation:

Answer:

$32.58 per person

Step-by-step explanation:

Find the values of x and y. The diagram is not to scale.

Answers

Answer:

51+x-5+y-6=180

x+y=180-51+5+6

X+y=140

Answer x=77 y=63

(those 2 lines with the arrows are perpendicular so their angles are the same 72° and (x-5)=77-5= 72°)

The values of x and y are 77 and 63 respectively.

What is Angle?

Angle is defined as the figure formed by two lines or rays which has a common point of intersection where the angle is formed.

Sum of the interior angles of a triangle is supplementary.

That is three angles (y - 6)°, 72° and an unknown angle is supplementary.

We have two parallel lines given and a transversal line intersects the parallel lines.

So the unknown angle of the triangle and the angle 51° are alternate interior angles and are thus equal.

So the third angle of the triangle = 51°

(y - 6) + 72 + 51 = 180

y - 6 + 123 = 180

y + 117 = 180

y = 63

The angles (x - 5)°, 51° and (y - 6)° are supplementary.

(x - 5) + 51 + (y - 6) = 180

x - 5 + 51 + 63 - 6 = 180

x + 103 = 180

x = 77

Hence the value of x is 77 and the value of y is 63.

To learn more about Angles, click on the link given below :

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The home that you want to purchase requires that you pay 3 points towards a $225,600 loan. Determine the cost of the home after the 3 points have been applied.

a.$225,600

c.$230,112

b.$227,856

d.$232,368

Answers

............…… is b ………

Answer:

Step-by-step explanation:

Comment above.

Helpp me with question 18.

Answers

Answer: A) <

Step-by-step explanation: 98.546 is less than 98.654

Is so easy pls help 20 points

Answers

Answer:

Step-by-step explanation:

bc 60-36=24 (idk if this is right)

Which graph represents the equation 3x+y=-1?

Answers

C. with the root being (-1/3, 0)

Answer:

The answer is c

Step-by-step explanation:

I put this into my graphing calculator to solve it. To do this by hand though you need to choose two numbers and enter then for x and that should give you the numbers the you need to plot on your graph.

Hope that help :)

Is numbers 9 and 10 correct ??!!

For number 9 I put : -2
For number 10 I put : 5/4, 4/5 , .75, 1.4, -5.8

Answers

Answer:

the answers are -2 and -5.8, 0.75, 4/5, 5/4, 1.4

Step-by-step explanation:

What is the error in this problem?

Answers

What problem was it not there

Adjacent angles that form a linear pair are supplementary angles. True or false?

Answers

Answer:

FALSE

Step-by-step explanation:

Answer:

Step-by-step explanation:

It's true. If you have a straight line and you put the endpoint of a ray on that line and let the ray go in the direction it is pointing, 2 angles will be formed unless the ray is part of the line.

The way the question is worded, you have a linear pair which means there are 2 distinct angles whose vertex is on a line.

That's the very definition of supplementary.

Which of the following expressions are equivalent to 12x+20? Select all that apply.
A.-2(6x - 10)
B.4(3x+ 20)
C.4(3x + 5)
D.12(x+1 2/3)
E.-2(10 – 6x)

Answers

Answer:

Step-by-step explanation:

4(3x+5) = 12x+20

Answer:

Step-by-step explanation:

It is common in many industrial areas to use a filling machine to fill boxes full of product. This occurs in the food industry as well as other areas in which the product is used in the home, for example, detergent. These machines are not perfect, and indeed they may A, fill to specification, B, underfill, and C, overfill. Generally, the practice of underfilling is that which one hopes to avoid. Let P(B) = 0.002 while P(A) = 0.980.

Answers

Hdhhdbdhdbdjndlsp highly vtu ghkcgk. Hhknbsjksjs

Waylon played defense in 12 soccer games. This was 60% of the total games he played. How many games did Waylon play?

Answers

Answer:

20 games

Step-by-step explanation:

(12/x)=(60/100)

12*100=1200

60x=1200

x=20

Step-by-step explanation:

What is the value of g(2)?

Answers

Answer:

Step-by-step explanation:

2x2 forma exponencial

Answers

4 or (2)^2 that’s what I think it’s asking but the question should be more clear

Which choice correctly shows rounding to the hundredths place?
4.234 + 4.752 + 7.99 right-arrow 4.2 + 4.8 + 8.0
3.825 + 4.792 + 3.0805 right-arrow 3.82 + 4.79 + 3.82
3.824 + 4.765 + 1.732 right-arrow 3.81 + 4.77 + 3.80
3.8765 + 4.824 + 1.733 right-arrow 3.88 + 4.82 + 1.73

Answers

Answer:

the last one:))))

Step-by-step explanation:

trust me

3.8765 + 4.824 + 1.733 → 3.88 + 4.82 + 1.73
The hundredths place is the second number after the decimal.
If the 3rd number after the decimal is 5-9, you round the second number up

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