1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Strike441 [17]
3 years ago
13

A cube has a area of 81cm squared find its volume​

Mathematics
2 answers:
vladimir1956 [14]3 years ago
4 0

Answer:

Area of one face of a cube = 81 sq cm.

Hence, each side of the cube = 81^0.5 = 9 cm.

So volume of the cube = 9^3 = 729 cm^3

Step-by-step explanation:

Alik [6]3 years ago
4 0

Step-by-step explanation:

Area of face of a cube = 81 cm squared

So area of face = a x a = 81

A^2 = 81

A= 9

So side = 9cm

So volume of a cube = side x side x side = side ^3

= 9x 9 x9 = 729

So Volume = 729 cm^3

You might be interested in
Simple math but I can't seem to understand it: x+y=2 becomes y=2-x, in order to find slope and y intercept y=mx+b The result bec
IgorLugansk [536]

Answer:

See below.

Step-by-step explanation:

So we started off with the equation:

x+y=2

And we subtracted x from both sides to acquire:

y=2-x

Now, this is essentially slope-intercept form. Recall that the slope-intercept form is:

y=mx+b

Where m is the slope and b is the y-intercept.

If we rearrange our equation:

y=2-x\\y=-x+2

And put some parentheses:

y=(-1)x+(2)

We can see that this is indeed slope-intercept form.

And we can see that m is -1 and b is 2.

In other words, the slope is -1 and the y-intercept is 2.

3 0
3 years ago
Read 2 more answers
Calculate the specific heat of a metal (in calories/gram-degree C) from the following data. A container made of the metal has a
Arisa [49]

Answer:

<h2>The specific heat of the metal is 0.274951 calories/gram-degree C.</h2>

Step-by-step explanation:

Let, the specific heat of the container is x calories/gram-degree C.

The container and water gains (18 - 15) = 3 degrees C.

Hence, the transfer of heat is 3(18.1\times1000\times1) + 3(3.77x\times1000).

The metal, which is dropped in the water, losses (164 - 18)= 144 degrees C.

Hence, the transfer of heat is 144\times 1.45\times1000x.

As per the given conditions,

3(18.1\times1000) + 3(3.77x\times1000) = 144\times1.45\times1000x\\54.3 + 11.31x = 208.8x\\197.49x = 54.3\\x = 0.274951.

6 0
3 years ago
The set of points in space that are a given distance from a given point is called a(n) __________.
Marrrta [24]

The answer would be B. Edge

The set of points in space that are a given distance from a given point is called an <u>Edge.</u>

D would be incorrect since it doesn’t have any edges and is like a circle but is 3D. A cylinder is also incorrect since it has curves from top to bottom. C is also incorrect since it only shows one side, which is called the face. That leaves you with edge which would be the correct answer.


Hope this helps! :3

8 0
3 years ago
Please help worth lot of points
Nat2105 [25]
It could be y=1 possibly
5 0
3 years ago
Read 2 more answers
Write 7.630 in word form.​
Maru [420]

Answer:

seven and six hundred thirty thousandths

Step-by-step explanation:

the decimal point is when you say and when reading it

4 0
3 years ago
Other questions:
  • What is probablity, and how would I be able to find? (Could you also show an example)
    9·1 answer
  • I need help with this bad
    9·1 answer
  • Pls help me out!!!!!!!
    13·1 answer
  • A process that is considered to be in control measures an ingredient in ounces. Below are the last 10 samples (each of size n=5)
    12·1 answer
  • Help me besties <br><br> Find the measure of each angle in a regular 55 sided polygon.
    5·1 answer
  • Find x. Round to the nearest degree.
    6·1 answer
  • If the length of the hypotenuse is 10 m and its base leg is 6 m, what is the length of
    12·2 answers
  • 192 is what percent of 70
    11·2 answers
  • Celina and Richard spend a certain amount of money from their money box each month to buy plants.
    14·1 answer
  • Felix divided his shirts into three equal groups. Evaluate when s = 18.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!