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katovenus [111]
3 years ago
6

What is the approximate volume of the cone? PLEASE HELP ASAP 38 PTS​

Mathematics
1 answer:
Yuri [45]3 years ago
3 0

Answer:

B. 2120 cm^{3}

Step-by-step explanation:

The formula to find the volume of a cone is 1/3 \pir^{2}h.

But lets simply find the volume of the circle first. 15 x 15 is 225. Lets put 3.14 as \pi. So 225 x 3.14 is 706.5. The volume of a cylinder would be 706.5 x 9  is 6358.5.

A cone is 1/3 of a cylinder, so 6358.5 /3 is 2119.5

Rounded up is B. 2120 cmcm^{3}

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Alex

The decrease is 8.7%

Step-by-step explanation:

Old price = $23000

New price = $21000

Difference = New price - Old price

Difference = 21000 - 23000 = -2000

The negative sign indicates the decrease.

Percent\ decrease=\frac{Difference}{New\ value}*100\\\\Percent\ decrease=\frac{2000}{23000}*100\\\\Percent\ decrease=\frac{200000}{23000}\\\\Percent\ decrease=8.69\%

Rounding off to nearest tenth;

Percent decrease = 8.7%

The decrease is 8.7%

Keywords: difference, percentage

Learn more about percentages at:

  • brainly.com/question/11207748
  • brainly.com/question/11280112

#LearnwithBrainly

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3 years ago
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Step-by-step explanation:

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