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elena55 [62]
2 years ago
8

The cone in Fig. 15.29 is exactly half full of water

Mathematics
1 answer:
Vlad1618 [11]2 years ago
7 0

Answer:

The water is 8 cm deep.

Step-by-step explanation:

In order to solve this problem we first need to find the total volume of the cone, this is done by using the following formula:

V = \frac{\pi*r^2*h}{3}\\\\V = \frac{\pi*(6)^2*16}{3}\\\\V = \frac{576*\pi}{3}\\\\V = 192*\pi

The total volume of the cone is 192*pi cm³, if it is half full then the volume of the water is half of that, which would be 96*pi cm³, we can apply this value to the same formula in order to find the height of the water:

96\pi = \frac{\pi*(6)^2*h}{3}\\\\\pi*36*h = 288\pi\\h = \frac{288}{36}\\h = 8 \text{ cm}

The water is 8 cm deep.

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2 years ago
What is 2160 minus 1600 long way
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Hey there, Lets solve this problem together. 

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\mathrm{Subtract\:each\:column\:of\:digits,\:starting\:from\:the\:right\:and\:working\:left} 

<span>We calculate </span>0-0<span>the result of which is </span>0<span> 
</span>
<span>We calculate </span>6-0<span> the result of which is </span>6<span>.
</span>
Since we get a negative number in the next column, we must take 1 from the next column and carry it over to this column. Now the number will be changed to 10.

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