All categories

3 years ago

Find the volume of a cone with diameter 12 m and height 20 m.

2 answers:

7 0

I don’t quite understand A B C or D.

Here is my take.

The formula for the volume of a cone is: pi*r^2*h/3. Pi is pi. R is radius. H is height.

So pi * 6*6 * 20/3

The answer is 753.98.

UNO [17]3 years ago

3 0

Answer:

240π m³

Step-by-step explanation:

Radius = Diameter/2

Radius = 12/2

Radius = 6 m

Volume of cone = ⅓πr²h

=> ⅓ × π × (6)² × 20

=> ⅓ × π × 36 × 20

=> π × 12 × 20

=> 240π m³

You might be interested in

Earl invested 6,000 in a money market account that pays 5% interest quarterly. How much money will he have in his account after

Sedbober [7]

Answer:

The amount becomes $6964.53 after 3 years .

Step-by-step explanation:

Formula

$Amount = P (1+\frac{r}{4})^{4t}$

Where P is the principle , r is the rate of interest in the decimal form and t is the time in the years .

As given

Earl invested 6,000 in a money market account that pays 5% interest quarterly for 3 years .

P = $6000

5% is written in the decimal form.

$= \frac{5}{100}$

= 0.05

r = 0.05

t = 3 years

Putting all the values in the formula

$Amount = 6000(1+\frac{0.05}{4})^{4\times 3}$

$Amount = 6000(1+0.0125)^{12}$

$Amount = 6000\times 1.16075452$

$Amount =\$ 6964.53\ (Approx)$

Therefore the amount becomes $6964.53 after 3 years .

3 0

3 years ago

A building is 2 ft from a 7 - ft fence that surrounds the property . A worker wants to wash a window in the building 11 ft from

White raven [17]

<u>Answer:</u>

The height of the ladder is 14.491 feet

<u>Explanation</u>:

Given the height is 11 feet

Base = 7 + 2 = 9 feet

Consider the ladder to be the hypotenuse

Applying Pythagoras Theorem,

$H^2 = P^2 + B^2$

Substituting the values in the above formula,

$H^2$ = 112 + 92

$H^2$ = 121 + 81

$H^2$ = 210

H = sqrt(210)

H = 14.491

Therefore, the height of the ladder is 14.491 feet

3 0

4 years ago

So teacher asked her to find 42.6÷10 to the second power how many places in what direction should sue move the decimal point to

ki77a [65]

move the decimal point 2 places to the left

42.6 / $10^{2}$ = 0.426

4 0

3 years ago

A survey,45% of respondents said they own a DVD player.Based on this information,predict how many of the 9,985 residents of Sadi

tatuchka [14]

Answer:

just breather just breathe

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Question 7 of 8 Which expressions describe the area of the shaded region? Select all that apply. A rectangle is divided into 12

SSSSS [86.1K]

Answer:

D. 1 4 × 1 3 E. 4 12 × 3 6

Step-by-step explanation:

D. 1 4 × 1 3 E. 4 12 × 3 6

4 0

3 years ago