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
Scrat [10]
3 years ago
14

How do you do this question?

Mathematics
1 answer:
ankoles [38]3 years ago
3 0

Step-by-step explanation:

S = ∫ 2π y ds

ds = √(1 + (dx/dy)²) dy

ds = √(1 + (8y)²) dy

ds = √(1 + 64y²) dy

S = ∫₁² 2π y √(1 + 64y²) dy

S = π/64 ∫₁² 128y √(1 + 64y²) dy

S = π/64 [⅔ (1 + 64y²)^(³/₂)] |₁²

S = π/96 (1 + 64y²)^(³/₂) |₁²

S = π/96 (1 + 256)^(³/₂) − π/96 (1 + 64)^(³/₂)

S = π/96 (257√257) − π/96 (65√65)

S = π/96 (257√257 − 65√65)

You might be interested in
rectangular bookcase 60 inches long and 30 inches wide. How long is the diagonal? Round to the nearest inch.
Llana [10]
Use a squared + b squared = c squared 60x60=3600 30x30=900 3600+900=3660 Square root 3660 =60.49 Rounded is 60 inches
3 0
4 years ago
Read 2 more answers
Consider the graph of the equation y=(x–9)? – 7. Compared the graph of y=x”, how has the vertex been shifted (left/right and/or
MissTica

Answer:

Shifted to the right by 9 units, and down by 7 units

Step-by-step explanation:

y=x is the origin.

(x-9) shows that the graph has moved 9 units to the right, as what is inside the parentheses indicates the opposite direction

(you can be able to review why this is from online resources or you can ask your teacher)

the -7 shows that the graph moves 7 units down the graph, it's outside the parentheses, so it follows the same direction

let's sum up:

for this situation,

- what is inside the parentheses is the x

- what is outside the parentheses is the y

- the x-values direction shifts opposite from the sign (+/-)

- the y-values direction shifts like the sign (+/-)

So,

the vertex has been shifted to the right by 9 units, and down by 7 units compared to y=x.

6 0
3 years ago
What is -3 over 10 plus -1 7 over 10?
shusha [124]
-3/10 + -17/10 = -20/10 = -2

Hope that helped!
8 0
4 years ago
Which graph shows a system with no solutions?
DochEvi [55]

Answer:

i belive its graph B

6 0
2 years ago
How many one fiths are in one​
Ivenika [448]

Answer:

5

Step-by-step explanation:

If you mean a whole, sorry if its incorrect

4 0
4 years ago
Other questions:
  • What is next in the pattern of 12,24,72,288
    12·1 answer
  • At Hoffman's Bike Rentals, it costs
    6·2 answers
  • The moon has a diameter of approximately 2,200 miles. If the circumference of a circle can be found using the formula C = πd, wh
    14·1 answer
  • (Imagine the X and Y are columns)
    15·1 answer
  • BRAINLIEST! Please help me out!
    9·1 answer
  • I need help on both of these math problems
    9·2 answers
  • Solve for the variable. Show all work. |6x| - 8 = -8
    11·1 answer
  • Emily and Mike each improved their yards by
    5·1 answer
  • Frank can type a report in 2 hours and James takes 7 hours. How long will it take the
    13·2 answers
  • Jude types 750 characters in 5 minutes. What is her typing rate in characters per minute?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!