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katrin [286]
2 years ago
13

Find the volume of a right circular cone that has a height of 11.7 m and a base with a

Mathematics
1 answer:
yulyashka [42]2 years ago
8 0

Answer:

volume of the cone = 247.98 cubic meter

Step-by-step explanation:

Height of the cone= 11.7 m

Circumference= 9 m

Radius= 9/2= 4.5 m

Volume of the cone;

            =\pi r^2\frac{h}{3}

As, \pi =\frac{22}{7}= 3.14

Putting the values in the formula:

Volume of the cone  is:

         =3.14*(4.5*4.5)*\frac{11.7}{3} \\\\=3.14*(4.5*4.5)*3.9\\\\=3.14*20.25*3.9\\\\=3.14*78.98\\\\=247.98m^3

The volume of the cone is 247.98 cubic meter

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5 0
2 years ago
Please help immediately ​
Burka [1]

Answer:    f'(1)=\dfrac{4}{2y+1}

<u>Step-by-step explanation:</u>

To find the tangent, you need to find the derivative with respect to x.

Then substitute x = 1 into the derivative.

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Derivative:  0 = 4x - y' - 2yy'

Solve for y': 2yy' + y' = 4x

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8 0
2 years ago
The Magic Dragon has 2013 heads. Leo the Brave is cutting off the Dragon's heads at a speed of 5 heads per minute. The Dragon's
aivan3 [116]

Answer:  The answer is 1833 heads  and 11 hours, 11 minutes.


Step-by-step explanation:  Given that the Magic Dragon has 2013 heads. The brave Leo is cutting off the Dragon's heads at a speed of 5 heads per minute. But, the Dragon's heads are growing back at a speed of 2 heads per minute.

So, the number of heads of Dragon that are decreasing per minute = 3.

Therefore, after 1 hour, i.e., 60 minutes, The number of heads of the Dragon

= 2013 - 60 × 3 = 2013 - 180 = 1833 heads.

Now, the fight will last until all the heads of the Dragon are cut. Let the fight lasts for 'x' minutes, then

2013-x\times 3=0\\\\\Rightarrow 3x=2013\\\\\Rightarrow x=\dfrac{2013}{3}=671.

Hence the fight lasts for 671 minutes, i.e., 11 hours and 11 minutes.

Thus, the Dragon will have 1833 heads after 1 hour and the fight will last for 11 hour and 11 minutes.


3 0
3 years ago
What number is between 2/7 and 4/11 <br> CHECK MY ANSWER PLEASE?!?!
-BARSIC- [3]
Yes, that's correct. All you do is add the two numbers together and then divide by 2!
3 0
3 years ago
6
irinina [24]
But, the y intercept is 2.
4 0
3 years ago
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