1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lyrx [107]
2 years ago
15

Please solve for X and Y

Mathematics
1 answer:
Tema [17]2 years ago
7 0

CCan you make it visible to see, please!CCan

You might be interested in
ПОЖАЛУЙСТА ПОМОГИТЕ РЕШИТЬ ДАЮ 23 ОЧКА!!!
posledela

(Простите, пожалуйста, мой английский. Русский не мой родной язык. Надеюсь, у вас есть способ перевести это решение. Если нет, возможно, прилагаемое изображение объяснит достаточно.)

Use the shell method. Each shell has a height of 3 - 3/4 <em>y</em> ², radius <em>y</em>, and thickness ∆<em>y</em>, thus contributing an area of 2<em>π</em> <em>y</em> (3 - 3/4 <em>y</em> ²). The total volume of the solid is going to be the sum of infinitely many such shells with 0 ≤ <em>y</em> ≤ 2, thus given by the integral

\displaystyle 2\pi \int_0^2 y \left(3-\frac34 y^2\right) \,\mathrm dy = 2\pi \left(\frac32 y^2 - \frac3{16} y^4\right)\bigg|_0^2 = 6\pi

Or use the disk method. (In the attachment, assume the height is very small.) Each disk has a radius of √(4/3 <em>x</em>), thus contributing an area of <em>π</em> (√(4/3 <em>x</em>))² = 4<em>π</em>/3 <em>x</em>. The total volume of the solid is the sum of infinitely many such disks with 0 ≤ <em>x</em> ≤ 3, or by the integral

\displaystyle \pi \int_0^3 \left(\sqrt{\frac43x}\right)^2 \,\mathrm dx = \frac{2\pi}3 x^2\bigg|_0^3 = 6\pi

Using either method, the volume is 6<em>π</em> ≈ 18,85. I do not know why your textbook gives a solution of 90,43. Perhaps I've misunderstood what it is you're supposed to calculate? On the other hand, textbooks are known to have typographical errors from time to time...

8 0
3 years ago
Callie is installing a rectangular walkway up to her house. The width of the walkway is 5 feet and the length is 27 feet. She ne
Sergio [31]

Answer:

I hate my life I hate my life I hate my life

4 0
1 year ago
8) The perimeter of a rectangle is 20x2 + xy - 7y2 and one of it's sides is
Sedbober [7]

Answer:

3x^2 + 3xy/2 - 7xy^2/2

Step-by-step explanation:

So we know the perimeter is 20x^2 + xy - 7y^2,

To find any perimeter you need 2l + 2w = P so,

One of the sides is 7x^2 - xy

First plug in the values,

2(7x^2-xy) + 2w = 20x^2 + xy - 7y^2

Multiply,

14x^2-2xy + 2w = 20x^2 + xy - 7y^2

Subtract,

14x^2 - 2xy - 14x^2 + 2xy + 2w = 20x^2 + xy - 7y^2 - 14x^2 + 2xy

2w = 6x^2 + 3xy - 7y^2

w = 3x^2 + 3xy/2 - 7xy^2/2

5 0
3 years ago
(10)+(-5)+(-5)+(-10)
BARSIC [14]
The answer to this question is -10
3 0
3 years ago
Read 2 more answers
What’s the distance between 120 and -50 on a number line ?
Vera_Pavlovna [14]

Answer:

170

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Hurry Help me plz!!:)))
    7·1 answer
  • Which of the following are accepted without proof in a logical system? A.Axioms B.Theorems C.Postulates D.Common Notions
    6·1 answer
  • What is 800 metres in centimetres
    8·2 answers
  • A tool set is on sale for $424.15.The original price of tthe tool set was $499.00. What percent of the original price is the sal
    15·1 answer
  • PLEASE HELP! 15 POINTS!
    7·2 answers
  • I forgot how to find the percent of decrease can someone please help?
    13·1 answer
  • I need help pls answer as fast as posible
    14·2 answers
  • Round to the nearest foot
    6·1 answer
  • A supervisor has to estimate the cost to unload a shipment. The cost of labour is $33 per hour, per worker.
    13·1 answer
  • Lin solved a quadratic equation by factoring and found one solution to be x = 3/4. Which of the following expressions could have
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!