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3 years ago

Please help. thank you

Mathematics

1 answer:

MaRussiya [10]3 years ago

4 0

Answer: what do need help on

Step-by-step explanation:

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216 I think because 3 times negative 2 is -6 the -6^3=6*6*6=216

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3 years ago

Write 257% as decimal

SCORPION-xisa [38]

Answer:

<u><em>please mark brainliest!</em></u>

Step-by-step explanation:

2.57

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4 years ago

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Debbie buys a tree for the holidays. She would like to determine the amount of space it will take up in her living room. The tre

Artyom0805 [142]

Answer:

Volume of cone = 200.96 square feet

Step-by-step explanation:

We are given the following information in the question:

The tree is cone shaped and has a radius of 4 feet.

r = 4 feet

The height of the tree is three times its radius.

$h = 3\times r = 3\times 4 = 12\text{ feet}$

Volume of tree =

$\text{Volume of cone} = \displaystyle\frac{1}{3}\pi r^2 h$

Putting all the values, we get,

$\text{Volume of tree} = \displaystyle\frac{1}{3}\pi (4)^2 (12)\\\\= \frac{1}{3}\times 3.14\times 4\times 4\times 12 = 200.96\text{ square feet}$

Radius of cone whose height is is equal to three times its radius is given as:

$V = \displaystyle\frac{1}{3}\pi r^2 h\\\\V = \displaystyle\frac{1}{3}\pi r^2 (3r)\\\\3V = 3\pi r^3\\\\ r = \sqrt[3]{\frac{3V}{3\pi}}$

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3 years ago

I really need help of 39 !!!! Lots of points

Reil [10]

The answer is C ! :)

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4 years ago

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What is 12.1 x (19.8 - 2.4)? Please show solving steps.

gladu [14]

Answer:

2105.4

Step-by-step explanation:

You take 19.8 and subtract 2.4 and get 17.4 as the first step. Then you multiply 17.4 and 12.1 and get 2105.4

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3 years ago