All categories

3 years ago

HELP QUICKLY!!!! WILL MARK BRAINLIEST!!!

2 answers:

4 0

The volume of a cone is equal to (pi*r^2*h)/3

(pi*25*2)/3= 52.35987...

Density = mass/volume

d= 6 grams/ 52.35987 cm^3= 0.11459...

Final answer: D

stepan [7]3 years ago

4 0

Answer:

$0.11g/cm^3$

Step-by-step explanation:

We are given that

Mass of cone=6g

Radius of cone=5 cm

Height of cone=2 cm

We have to find the density of cone.

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

Volume of cone= $\frac{1}{3}\times 3.14\times 25\times 2=52.33 cm^3$

We know that

Density = $\frac{mass}{volume}$

Density of cone= $\frac{6}{52.33}=0.11g/cm^3$

Answer: $0.11g/cm^3$

You might be interested in

What is the distance between the building B (4, 6) and the station K (–6, –2)? Use a calculator to round to the nearest tenth.

Svetllana [295]

Answer:

The answer is

<h2>12.8 units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

$d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

B (4, 6) and K (–6, –2)

The distance is

$|BK| = \sqrt{ ({4 + 6})^{2} + ({6 + 2})^{2} } \\ = \sqrt{ {10}^{2} + {8}^{2} } \: \: \: \: \: \: \: \: \: \\ = \sqrt{100 + 64} \: \: \: \: \: \: \: \: \: \\ = \sqrt{164} \\ = 2 \sqrt{41} \\ = 12.80$

We have the final answer as

<h3>12.8 to the nearest tenth</h3>

Hope this helps you

5 0

3 years ago

8x – 10 = 3x – 10 + 7x

stira [4]

Answer:

x= 0

Step-by-step explanation:

Let's first simplify the equation to make the PEMDAS process easier.

8x-10=3x-10+7x

8x-10=10x-10

Now lets start the subtracting and dividing process.

8x=10x

0=2x

0=x

6 0

3 years ago

PLEASE HELP QUICKLY! 20 points! I will mark best answer as Brainliest!

Alina [70]

t= 2.25 secs

Step-by-step explanation:

Step 1 :

Equation for motion with uniform acceleration is v = u+ at

where v is the final velocity

u is the initial velocity

a is the acceleration due to gravity

and t is the time

Step 2 :

Here , v = 0 because at the highest point final velocity is 0.

u = 72 feet/sec

a = -32 ft/sec^2

We need to find the time t.

Substituting in the equation we have,

0 = 72 -32 * t

=> 32 t = 72

=> t = 72/32 = 2.25 secs

4 0

3 years ago

A truck uses 1 tablespoon of gasoline to drive 125 yards. How many miles can the vehicle travel per gallon?

Alborosie

Answer:

18.18 miles.

Step-by-step explanation:

A truck uses 1 tablespoon of gasoline to drive 125 yards.

Now, 1 gallon of gasoline contains 256 tablespoons of gasoline.

So, the truck uses 1 gallon i.e. 256 tablespoons of gasoline to drive (256 × 125) = 32000 yards.

Now, 1-mile distance contains 1760 yards.

Therefore, the truck uses 1 gallon of gasoline to drive $\frac{32000}{1760} = 18.18$ miles. (Answer)

8 0

3 years ago

A game room has a floor that is 125 feet by 30 feet. A scale drawing of the floor on grid paper uses a scale of 3 units:5 feet.

crimeas [40]

It would be 75 units in length and 18 units in width.

7 0

3 years ago