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3 years ago

The radius of a cone is 5cm the heigth of the cone is 18 cm what is the volume of the cone

Mathematics

1 answer:

nikitadnepr [17]3 years ago

3 0

6-8 cm is the answer!! Hope this helps!

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30 POINTS!!!!!!!! JoeNah, DeKobian and Evan wrote equations to calculate the amount of money in a savings account after one year

castortr0y [4]

Answer:

See the explanation for the answer to this question

Step-by-step explanation:

Let

B ---> the balance of money saved.

M ---> the amount invested in dollars

JoeNah's Equation

M=$100

$B=1.5(100)=\$150$

Dekobian's Equation

M=$100

$B=100+0.05(100)=\$105$

Evan's Equation

M=$100

$B=M(1+0.05)$

Substitute

$B=100(1+0.05)=\$105$

Dekobian's equation and Evan's equation are correct! :)

JoeNah's equation is wrong. :(

Hope this helps you!

Have a good evening!

4 0

3 years ago

$10,000 at an annual rate of 7%, compounded semi-annually, for 2 years

forsale [732]

Answer:

$\$13,107.96$

Step-by-step explanation:

Since interest is compounded semi-annually (half a year or 6 months), in a spawn of 2 years, the interest will have been compounded 4 times. As given in the problem, each time the interest is compounded, the new balance will be 107% or 1.07 times the amount of the old balance.

Therefore, we can set up the following equation to find the new balance after 2 years:

$\text{New balanace}=10,000\text{ (old balance)}\cdot 1.07\cdot 1.07\cdot 1.07\cdot 1.07,\\\text{New balanace}=10,000\cdot 1.07^4=\boxed{\$13,107.96}$

8 0

3 years ago

If Sin X equals .52" and cos X equals .85 what is cot X

Maslowich

Cot x = cos x / sin x = 0.85 / 0.52 = 1.6346

4 0

3 years ago

Helpppppp pleaseeee me helpppp

Readme [11.4K]

Answer:

$10 + $10 + $1 + 25¢ + 5¢

$20 + $1 + 25¢ + 5¢

Step-by-step explanation:

Each one must pay $21.30

3 0

3 years ago

Please help me in really confused

Marina86 [1]

The chart on the side should help you out. The width of a doorway is approximately 1 meter and the height of a skyscraper is 1,000 meters. Divide the height of the skyscraper by the width of the doorway to get your answer. It would take 1,000 door widths to make up the height of a skyscraper, so the height of the skyscraper is 1,000 times the width of the doorway.

5 0

3 years ago