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
stepan [7]
3 years ago
15

Use a double integral to find the volume of the solid in the first octant bounded by the plane determined by the three non-colin

ear points P(3, 0, 0), Q(0, 1, 0),R(0, 0, 2). Draw a picture of the volume you are finding.
Mathematics
1 answer:
miv72 [106K]3 years ago
5 0

Answer:

2.5 units^3

Step-by-step explanation:

Given:-

- The solid is bounded by a plane defined by the following points:

                       P(3, 0, 0), Q(0, 1, 0),R(0, 0, 2)

Find:-

Use a double integral to find the volume of the solid in the first octant bounded by the plane

Solution:-

- Determine the equation of the plane. Compute two direction vectors d1 and d2 that lie on the plane:

                              d1 = P - Q

                              d1 = (3, 0, 0) - (0, 1, 0) = (3,-1,0)

                              d2 = P - R

                              d2 = (3, 0, 0) - (0, 0, 2) = (3,0,-2)

- Find the a vector "normal" - n to the plane by cross product formulation of direction vectors (d1 and d2) that lie on the plane:

               n = d1xd2 = \left[\begin{array}{c}3&-1&0\end{array}\right] x \left[\begin{array}{c}3&0&-2\end{array}\right] = \left[\begin{array}{ccc}3&-1&0\\3&0&2\end{array}\right] = \left[\begin{array}{c}-2&-6&3\end{array}\right]

- The equation of plane is:

                                n.(x,y,z) = n.P

                               -2x -6y + 3z = -6

- The function of one variable would be:

                                z = (2/3)x + 2y - 2

- The double integration formulation would be:

                                \int\limits^a_b  \int\limits^c_d  f(z) dy.dx\\\\\int\limits^a_b  \int\limits^c_d  (\frac{2x}{3} + 2y - 3) dy.dx\\\\\int\limits^a_b (\frac{2xy}{3} + y^2 - 3y) |_c^d.dx

- Where the limits (c and d) are defined by planar (x-y) projection of plane (n) :

                              y = d = -(1/3)x + 1

                              c = 0

- Evaluate the limits:

                              \int\limits^a_b (\frac{-2x^2 + 6x}{9} + \frac{x^2}{9} -\frac{2x}{3} +1   + x - 3) .dx\\\\\int\limits^a_b (\frac{-x^2 }{9}  + x - 2) .dx\\\\(\frac{-x^3 }{27}  + \frac{x^2}{2}  - 2x)|^3_0\\\\(\frac{-27 }{27}  + \frac{9}{2}  - 6) = 1 - 4.5 + 6 = 2.5 unit^3

You might be interested in
If a line has a midpoint at (2,5), and the endpoints are (0,0) and (4,y), what is the value of y? Please explain each step for a
Dovator [93]

Answer:

y = 10

Step-by-step explanation:

To find the y coordinate of the midpoint, take the y coordinates of the endpoints and average

(0+y)/2 = 5

Multiply each  die by 2

0+y = 10

y = 10

3 0
2 years ago
Factorization of the expression (3x-2y)((a+b)+(4x-3y)(a+b)​
Mrrafil [7]
Hi!!
:D
your answer is

8 0
3 years ago
M∠1 = 80 – x; and
Burka [1]

Answer:

10

Step-by-step explanation:

<em>m∠</em>2 and <em>m∠</em>1 are congruent by the Corresponding Angles Theorem; we set both expressions equal to each other:

[80 - x]° = [90 - 2x]°

+ x° + x°

______________

80° = [90 - x]°

-90° - 90°

__________

−10° = [−x]°

10° = x

I am joyous to assist you anytime.

6 0
3 years ago
Pls help I need a good grade
aleksley [76]

Answer:

f= -14

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
HELP if f(x)=25-x^2 and g(x)=x+5 what is (f/g)(x)?
SashulF [63]
I hope this helps you

3 0
3 years ago
Other questions:
  • Find the value of k so that the differential equation is exact, and find the general solution
    11·1 answer
  • Which of the terms cannot be combined with the others?<br> -3x<br> 4x <br> 2 x <br> 11x
    5·2 answers
  • Waterway Industries has fixed costs of $15,000 per year. Its warehouse sells wine with variable costs of 70% of its unit selling
    14·1 answer
  • Solve for z.<br> a(5 - 2) = bx – 8<br><br> x=
    8·2 answers
  • Solve the literal equation for the given variable.<br> y = x + 12; x
    11·2 answers
  • Caroline walked 40 laps on an indoor track in 20 minutes. What was Caroline's average speed in laps per minute?
    14·2 answers
  • Need help fast...
    6·1 answer
  • Simplify -|-7+4|<br> O -3<br> O 3<br> O 11
    11·2 answers
  • 2.3 x (-1.2) <br> Just multiply<br><br> -27.6<br> -2.76<br> 2.76<br> 27.6
    9·1 answer
  • Can someone help me with this one​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!