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
xenn [34]
3 years ago
14

Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y = 64x−8x^2,

y = 0; about the y-axis.
Mathematics
1 answer:
Mandarinka [93]3 years ago
4 0
We need to get the limits first. When y = 0
0 = 64x - 8x^2
x = 0 and x = 8
The volume is
V = ∫ y dx from 0 to 8
V = ∫ (64x - 8x^2) dx from 0 to 8
V = 32x^2 - 8x^3/3 from 0 to 8
V = 682.67<span />
You might be interested in
How do you read the mixed number shown as a fraction greater than one
skad [1K]
Suppose th emix number is 1 2/3 you will say 1 whole 2 out of 3
5 0
3 years ago
David is watching maria and alma race electric trains around track. Maria train can go around the track in 10 seconds. Almas tra
Nady [450]

Answer:

60 seconds.  

Step-by-step explanation:  

We have been given that Maria train can go around the track in 10 seconds. Alma train can go around the track in 12 seconds.

To find the number of seconds after which both trains will cross the finish line together the first time we will find LCM of 10 and 12. LCM will give us the smallest positive integer that is divisible by both 10 and 12.  

Multiples of 10 are: 10, 20, 30, 40, 50, 60, 70,...    

Multiples of 12 are: 12, 24, 36, 48, 60, 72, 84,..  

We can see that least common multiple of 10 and 12 is 60, therefore, it will take 60 seconds for both trains to cross the finish line together the first time.

6 0
3 years ago
7th Grade Math (Please help me with this question I'm confused with this one)
Vlad [161]

Answer:

To subtract a number from another number, the sign of the number (which is to be subtracted) should be changed and then this number with the changed sign, should be added to the first number

Step-by-step explanation:

(i) Evaluate (+6) – (+2)

= (+6) + (-2) (charging the sign of the number to be subtracted and then adding)

On subtracting smaller number 2 from bigger number 6; we get 6 – 2 = 4

Since, the sign of bigger number is + (positive)

= +4 or 4

Therefore, (+6) – (+2) = 4

(ii) Evaluate (+5) – (-3)

= (+5) + (+3) (charging the sign of the number to be subtracted and then adding)

We know, to add a positive (+ ve) number to a positive (+ ve) number, the numbers should be added and positive sign should be attached to the sum obtained.

= +8

Therefore, (+5) – (-3) = 8

6 0
1 year ago
serenity wants to bake cookies each batch of cookies tajes 2 and 1/4 cuos flour if she wants to bake 5 batches of cookies hiw ma
Sidana [21]

Answer:

11 1/4 or 45/5

Step-by-step explanation:

just multiply 5 * 2 1/4

And thats ur answer

4 0
2 years ago
Y=-4x+4
attashe74 [19]
Steps:
1. Substitute the y in y=4x + 4 and put
X-6=-4x+4
2. Add 4x to both sides
3. 5x-6=4
4. Add 6 to both sides
5. 5x=10
6. Divide by 5 on both sides
7. X=2
8. Now to find the y, you substitute 2 for x in the problem y=x-6
9. Y=2-6
10. Y=-4
11. Your answer is
(2, -4)
3 0
2 years ago
Read 2 more answers
Other questions:
  • a group of 20 students and 4 adults are going on a field trip to the mueseum make a diagram to show the ratio of students and ad
    11·1 answer
  • Find the start and end coordinates of y=2 sin x.
    12·1 answer
  • The length of a square is 4x-3. Find the area in terms of x
    12·1 answer
  • Over which interval(s) is the function decreasing?
    13·1 answer
  • The volunteers at a high school football team's concession stand are trying to decide on the price of the hot dogs they are sell
    12·1 answer
  • Find the value of x in the triangle.
    5·1 answer
  • Daom its been so long i was just zoning out and thinkin... why havent they made a dark mode to this smh i be on discord to much
    6·1 answer
  • More than 200 universities in the United States and many more worldwide have sport management programs. Approximately how many a
    7·1 answer
  • 2 + 2 =? <br><br>Don't worry these are just some "for you" points?​
    15·2 answers
  • The rock cycle is an explanation of the conservation of
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!