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
skad [1K]
3 years ago
13

Question part points submissions used use cylindrical coordinates. evaluate x2 + y2 dv, e where e is the region that lies inside

the cylinder x2 + y2 = 4 and between the planes z = 3 and z = 7.
Mathematics
1 answer:
Inessa [10]3 years ago
4 0
\displaystyle\iiint_E(x^2+y^2)\,\mathrm dV=\int_{\theta=0}^{\theta=2\pi}\int_{r=0}^{r=2}\int_{z=3}^{z=7}r^3\,\mathrm dz\,\mathrm dr\,\mathrm d\theta
=8\pi\displaystyle\int_0^2r^3\,\mathrm dr=2\pi(2^3-0^3)=16\pi
You might be interested in
After proving two triangles are congruent, then one can prove parts of a triangle are congruent using the reasoning CPCTC.
KatRina [158]

Answer:

The answer is True because CPCTC stands for Corresponding Parts of Congruent Triangles are Congruent.

7 0
3 years ago
Express 112 as a product of prime numbers in index form?
alexgriva [62]
                                   112
                                    /  \
                                  2   56
                                       /  \
                                     2   28
                                          /  \
                                         2  14
                                              /  \
                                             2  7

So, the answer is 2 x 2 x 2 x 7 or 2^3 x 7
6 0
3 years ago
Solve for a: a(a-3) =100
marissa [1.9K]
a(a-3) =100\\
a^2-3a-100=0\\
\Delta=(-3)^2-4\cdot1\cdot(-100)=9+400=409\\
\sqrt{\Delta}=\sqr{409}\\
a_1=\dfrac{-(-3)-\sqrt{409}}{2\cdot1}=\dfrac{3-\sqrt{409}}{2}\\
a_2=\dfrac{-(-3)+\sqrt{409}}{2\cdot1}=\dfrac{3+\sqrt{409}}{2}
5 0
3 years ago
A local sawmill sells a total of 250,000 board feet of hardwood each year. The ratio of softwood sold to hardwood sold is 5: 3.
IrinaK [193]

Answer:

look i need help on the smae thing so sorry

Step-by-step explanation:

5 0
3 years ago
Find the missing side lengths. leave your answers as radicals in simplest form.
Murrr4er [49]

Answer:

x = 4 , y = 2

Step-by-step explanation:

Using the sine / tangent ratios in the right triangle and the exact values

sin60° = \frac{\sqrt{3} }{2} and tan60° = \sqrt{3} , then

sin60° = \frac{opposite}{hypotenuse} = \frac{2\sqrt{3} }{x} = \frac{\sqrt{3} }{2} ( cross- multiply )

x \sqrt{3} = 4\sqrt{3} ( divide both sides by \sqrt{3} )

x = 4

and

tan60° = \frac{opposite}{adjacent} = \frac{2\sqrt{3} }{y} = \sqrt{3} ( multiply both sides by y )

y \sqrt{3} = 2\sqrt{3} ( divide both sides by \sqrt{3} )

y = 2

6 0
3 years ago
Other questions:
  • Find all the points, if any, where the graph of 12x-5y=0 intersects (x+12)^2+(y-5)^2=169.
    7·2 answers
  • Calculate 8 ∙ 10-4 divided by 2 ∙ 102. (box after the "10" in answer is for the exponent.). ∙ 10
    7·1 answer
  • Mathematics (Reasked) Thank you for any answers, please be sure of it before you respond.
    7·1 answer
  • What is the reason for step 5?
    9·1 answer
  • A soccer ball is placed 12 feet away from a goal post that measures 8ft high. You kick the ball and it hits the crossbar at the
    5·1 answer
  • If​ f(x) is defined as​ follows,
    6·1 answer
  • 11 less than three times a number is the same as 75 less than the product of -1 and the number
    8·2 answers
  • What the answer <br> 2x-3y=-1<br> y=x-1
    11·1 answer
  • A) CHOICE A<br> B) CHOICE B <br> C) CHOICE C<br> D) CHOICE D
    5·2 answers
  • Whats your spotify user, i need some new playlists to listen to<br> mine is nllazzari
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!