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
Montano1993 [528]
3 years ago
11

Find the area of the surface obtained by rotating the curve y x2 0 ≤ x ≤ 2 about the y axis

Mathematics
1 answer:
Rudiy273 years ago
4 0

<span>ds=<span>√<span>1+<span><span>(<span><span>dy</span><span>dx</span></span>)</span>2</span></span></span><span>dx</span>=<span>√<span>1+<span>14</span><span>(<span>x4</span>−2+<span>1<span>x4</span></span>)</span></span></span><span>dx</span></span>

<span>=<span>√<span><span>14</span><span>(<span>x4</span>+2+<span>1<span>x4</span></span>)</span></span></span><span>dx</span>=<span>√<span><span>1<span>22</span></span><span><span>(<span>x2</span>+<span>1<span>x2</span></span>)</span>2</span></span></span><span>dx</span></span>

<span>=<span>12</span><span>(<span>x2</span>+<span>1<span>x2</span></span>)</span><span>d<span>x</span></span></span>

You might be interested in
Factor the following polynomials by grouping:<br> ax+ay+bx + by −cx−cy
Eddi Din [679]

Answer:

(a + b -c) x (x +y )

Step-by-step explanation:

Firstly, factor out x from the expression

Then, factor out the y from the expression

8 0
2 years ago
The equation of the line that goes through the points ( − 3 , − 9 ) and ( − 6 , − 3 ) can be written in the form y = m x + b
ivolga24 [154]

Answer:

y=-2x-15

Step-by-step explanation:

y=mx+b.

m is the slope of the line. To find it we can do \frac{dy}{dx} which is the difference between the y-coordinates divided by the difference between the x-coordinates.

So: \frac{dy}{dx} =\frac{-9-(-3)}{-3-(-6)} =\frac{-6}{3} =-2. Now we have the slope, let's input a set of coordinates into the equation so that we can find the constant b.

-9=-2(-3)+b

b=-15 - Re-arranging to get b

Now re-write the equation as we have the constants.

y=-2x-15

8 0
3 years ago
I need help with this question is it A,B C or D
mixer [17]

Answer:

c

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
PLEASE HELP. 40 points!!!
sergij07 [2.7K]

Answer:

nothing

first ride he take 1000galons and after 1000 miles he consumpted 1000galons so nothing left

7 0
2 years ago
A contractor finds that 3 gallons of paint will cover 375 sq ft of wall area. How much wall area could be covered with 18 gallon
ss7ja [257]
It will cover 2050 square feet
8 0
3 years ago
Other questions:
  • Which of the following is an example of function notation?
    14·1 answer
  • 1. For the three-part question that follows, provide your answer to each question in the given workspace. Identify
    9·1 answer
  • Today only, a table is being sold at a 71% discount. The sale price is $197.20.
    14·1 answer
  • Tammy is making 5 batches of punch for the school's Spring Carnival. The recipe for one batch uses 1 liter of orange juice, 550
    12·1 answer
  • If f(x) = 3x - 1, find f(10).
    11·2 answers
  • Find the value of x. Write your answer in simplest form.<br> 30°<br> X<br> 14<br> X =
    13·1 answer
  • A building that is 90 feet tall cast a shadow 30 feet long what is the angle of elevation of the sun
    11·1 answer
  • Use the triangle to answer the questions on the right.
    9·1 answer
  • A sales person told Hannah she could buy the computer on an installment plan. She
    14·1 answer
  • Acellus
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!