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Nata [24]
3 years ago
13

The height of a cone is twice the radius of its base.

Mathematics
1 answer:
fredd [130]3 years ago
3 0

Answer: 2/3πx³

Step-by-step explanation:

Let the radius of the cone be represented by x.

Since the height of the cone is twice the radius of its base, the height will be: = 2x

Volume of a cone = 1/3πr²h

where,

r = x

h = 2x

Volume of a cone = 1/3πr²h

= 1/3 × π × x² × 2x

= 1/3 × π × x² × 2x

= 1/3 × π × 2x³

= 2/3πx³

Therefore, the correct answer is 2/3πx³.

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3 years ago
Factor: 2x2 - 11x - 40?​
galben [10]

Answer: 444

Step-by-step explanation:

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6 0
3 years ago
<img src="https://tex.z-dn.net/?f=1%5Cfrac%7B3%7D%7B10%7D" id="TexFormula1" title="1\frac{3}{10}" alt="1\frac{3}{10}" align="abs
vfiekz [6]

Answer:

\frac{1}{30}

Step-by-step explanation:

Change the mixed number into an improper fraction

1 \frac{3}{10} = \frac{13}{10}, hence

\frac{13}{10} ÷ 39

To divide, leave the first fraction, change division to multiplication and turn 39 upside down, that is

= \frac{13}{10} × \frac{1}{39}

cancel the 13 and 39 by dividing both by 13

= \frac{1}{10(3)} = \frac{1}{30}


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