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
Debora [2.8K]
2 years ago
6

I have to try and find the volume of the cone

Mathematics
1 answer:
EastWind [94]2 years ago
6 0

Answer:

1,282.2 m³

Step-by-step explanation:

We'll use the formula 1/3*(B*h)

First, you have to find the area of the base

formula: πr²

radius: 7

7*7= 49

49*3.14=153.86

Now, multiply 153.86 by 25 (the height)

153.86*25= 3,846.5

Lastly, divide 3,846.5 by 3 and get 1,282.2 rounded

You might be interested in
What method would you use to solve -4x2 - 5x + 5=0
ipn [44]
Using the quadratic formula
5 0
2 years ago
Read 2 more answers
A construction company wants to hire x carpenters for $220 a day and y plumbers for $260 a day. the company wants to hire at lea
Ksju [112]

Answer:6

Step-by-step explanation:

$220 × 6 = $1320 this is how much it cost to pay 6 carpenters for one day. Now lets find how much it cost to 12 plumbers at $260 a day. $260 × 12 = $3120 this is how much it costs to pay 12 plumbers a day.

7 0
3 years ago
Choose the best coordinate system to find the volume of the portion of the solid sphere rho <_4 that lies between the cones φ
MrRissso [65]

Answer:

So,  the volume is:

\boxed{V=\frac{128\sqrt{2}\pi}{3}}

Step-by-step explanation:

We get the limits of integration:

R=\left\lbrace(\rho, \varphi, \theta):\, 0\leq \rho \leq  4,\, \frac{\pi}{4}\leq \varphi\leq \frac{3\pi}{4},\, 0\leq \theta \leq 2\pi\right\rbrace

We use the spherical coordinates and  we calculate a triple integral:

V=\int_0^{2\pi}\int_{\frac{\pi}{4}}^{\frac{3\pi}{4}}\int_0^4  \rho^2 \sin \varphi \, d\rho\, d\varphi\, d\theta\\\\V=\int_0^{2\pi}\int_{\frac{\pi}{4}}^{\frac{3\pi}{4}} \sin \varphi \left[\frac{\rho^3}{3}\right]_0^4\, d\varphi\, d\theta\\\\V=\int_0^{2\pi}\int_{\frac{\pi}{4}}^{\frac{3\pi}{4}} \sin \varphi \cdot \frac{64}{3} \, d\varphi\, d\theta\\\\V=\frac{64}{3} \int_0^{2\pi} [-\cos \varphi]_{\frac{\pi}{4}}^{\frac{3\pi}{4}}  \, d\theta\\\\V=\frac{64}{3} \int_0^{2\pi} \sqrt{2} \, d\theta\\\\

we get:

V=\frac{64}{3} \int_0^{2\pi} \sqrt{2} \, d\theta\\\\V=\frac{64\sqrt{2}}{3}\cdot[\theta]_0^{2\pi}\\\\V=\frac{128\sqrt{2}\pi}{3}

So,  the volume is:

\boxed{V=\frac{128\sqrt{2}\pi}{3}}

4 0
3 years ago
Please help! 15 points!
olya-2409 [2.1K]

Answer:

I guess it's False...Hope it helps you.

6 0
2 years ago
Which point is not in the interior of sphere T?<br><br> T<br> J<br> H
adelina 88 [10]

Answer:

Point H is not in the interior of sphere T.

6 0
3 years ago
Other questions:
  • John Tucker is interested in purchasing stock. He wants to determine the costs.
    15·2 answers
  • The amphitheater has two types of tickets available, reserved seats and lawn seats. The maximum capacity of the venue is 20,000
    11·1 answer
  • What<br> Are the answers please tell me
    11·1 answer
  • What’s the domain of the function above?
    6·1 answer
  • Which Numbers are listed from least to greatest : A : 300, 0, - 200, - 250, or B : - 250, - 200, 0, 300 or C : 0, - 200, - 250,
    11·2 answers
  • 15 x -3=?<br><br> 5<br> 45<br> -45<br> -5
    13·1 answer
  • Question is in the image​
    8·1 answer
  • Find y.<br> please help if you can
    15·2 answers
  • Find sin(α) in the triangle.
    7·1 answer
  • E<br> B<br> F<br> D<br> NOTE: Angles not necessarily drawn to scale.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!